Bible Verses About Courage and Strength
Written by the Scripture Guide Team
Every command to "be strong and courageous" in Scripture is accompanied by a stated theological ground — a reason given for why the command is possible to obey. These verses examine the consistent biblical pattern of derivative courage and what it means for how strength is found and sustained.
There is a pattern embedded in the biblical commands about courage and strength that is easy to overlook but theologically precise: the command to "be strong" or "be courageous" is almost never freestanding. It is almost always attached to a ground — a theological statement about God presented as the reason why the command is possible to obey. "Be strong and courageous; for I am with thee." "Be strong in the Lord, and in the power of his might." "I can do all things through Christ which strengtheneth me." The ground is the specific basis on which the command rests, not an encouragement appended to it.
This pattern reveals something important about how Scripture understands courage. Biblical courage is not primarily a character trait possessed by the naturally brave. It is a derivative state: a form of strength drawn from a source outside the self, available to people who have correctly identified that source and learned to draw from it. The figures who display the most sustained courage in Scripture — Joshua facing the military conquest, David entering the valley against Goliath, Paul in prison writing to the churches — are described not as braver than ordinary people but as people who have identified the specific source the strength requires and learned to access it.
The verses examined here trace the consistent pattern of derivative courage across both Testaments — the commands, their grounds, and how the strength that courage requires is received rather than generated.
Joshua 1:9
Have not I commanded thee? Be strong and of a good courage; be not afraid, neither be thou dismayed: for the LORD thy God is with thee whithersoever thou goest.
The "have not I commanded thee?" that opens the verse is the reminder that the courage being called for is commanded — it is not optional or aspirational. But the command is immediately grounded: "for the LORD thy God is with thee whithersoever thou goest." Joshua is not told to feel brave or to discover reserves of interior strength; he is told to receive the courage that the presence of God makes available. The word "dismayed" — the Hebrew chatat, to be shattered, to collapse internally — identifies the specific internal failure the command is addressing. The presence of God is the specific provision for that specific failure.
Ephesians 6:10
Finally, my brethren, be strong in the Lord, and in the power of his might.
Paul's instruction is specific about the source and character of the strength being called for: "in the Lord, and in the power of his might." The Greek en tou kuriou — "in the Lord" — identifies the strength as inhering in the relationship rather than in the person's own capacity. The strength is the Lord's strength, available to the person who is "in" the Lord. The word translated "might" — the Greek kratos, ruling, governing power — is the term reserved for the specifically divine power. The person who is strong in the Lord has accessed a quality of strength qualitatively different from anything they could generate through their own effort.
Philippians 4:13
I can do all things through Christ which strengtheneth me.
The context of Philippians 4:13 is essential to understanding it correctly. The verse follows Paul's account of having "learned, in whatsoever state I am, therewith to be content" — the contentment that covers both abounding and being abased, both fullness and hunger. The "all things" Paul can do through Christ is the bearing of every circumstance without being destroyed by either the favorable or the unfavorable. The word translated "strengtheneth" — the Greek endunameo, to empower from within — identifies the source as internal rather than circumstantial. The strength does not come from circumstances becoming favorable; it is channeled from Christ into the person in the middle of unfavorable ones.
Deuteronomy 31:6
Be strong and of a good courage, fear not, nor be afraid of them: for the LORD thy God, he it is that doth go with thee; he will not fail thee, nor forsake thee.
Moses's command to all Israel uses the same formula as Joshua 1:9 but with an additional element: "he will not fail thee, nor forsake thee." The negative formulation — not fail, not forsake — is the specific counter-claim to the two fears that most threaten courage: the fear that God's provision will prove insufficient, and the fear that God's presence will be withdrawn. The courage commanded is the courage appropriate to a people whose God has committed to neither failing nor forsaking them. The maximum available ground for courage is the commitment of God to presence and sufficiency — not the commitment of circumstances to cooperate.
Psalm 27:14
Wait on the LORD: be of good courage, and he shall strengthen thine heart: wait, I say, on the LORD.
This verse connects courage directly to the practice of waiting on the LORD — establishing that the strengthening of the heart that makes courage possible is a product of the waiting rather than a precondition for it. The person is not told to become courageous and then wait; they are told to wait and to be courageous in the same breath. The strengthening of the heart occurs in the person who maintains the orientation of trust while the circumstances remain threatening. The courage here is not the courage of the resolved situation; it is the courage of the person whose heart has been strengthened by sustained waiting on the LORD in the unresolved situation.
2 Timothy 1:7
For God hath not given us the spirit of fear; but of power, and of love, and of a sound mind.
Paul identifies the spirit of deilia — the fearfulness that shrinks from the required act — as not having originated from God. In its place are three specific gifts: power (dunamis, the capacity for effective action), love (agape, the other-orientation that displaces self-protective fearfulness), and a sound mind (sophrosmos, the disciplined mind not subject to panic's distortions). Each gift addresses a different dimension of what courage requires: the power provides the capacity, the love the motive that overcomes self-concern, and the sound mind the clarity that makes courageous action purposeful rather than merely reckless. The courage that flows from these three gifts is qualitatively different from the bravado of the person who has simply suppressed their fear.
Isaiah 40:29-30
He giveth power to the faint; and to them that have no might he increaseth strength. Even the youths shall faint and be weary, and the young men shall utterly fall.
The specific recipients of God's given strength are "the faint" and those "that have no might" — the people who have run out of their own resources. The observation that "even the youths shall faint" — even those with the maximum natural reserves of human strength — establishes the theological context: human strength, even at its greatest, is a finite resource that runs out. The strength that God provides is the specific provision for the person who has arrived at the limit — not the supplement to human strength, but the replacement of it. The correct posture for receiving divine strength is not the posture of the person who still has reserves but of the person who has acknowledged the end of their own.
Nehemiah 8:10
Then he said unto them, Go your way, eat the fat, and drink the sweet, and send portions unto them for whom nothing is prepared: for this day is holy unto our LORD: neither be ye sorry: for the joy of the LORD is your strength.
The declaration that "the joy of the LORD is your strength" introduces a source of strength distinct from all others in these verses: the joy that belongs to the LORD — His own settled delight in His purposes and people — made available as the strength of the believer. The context is the reading of the Law to the returned exiles, who wept at hearing it. The response is not the suppression of grief but its redirection toward the joy of the LORD, which is available as strength for the day. The returned exiles are in the ruins of a partially rebuilt city — the strength available through God's joy is not contingent on the circumstances being favorable.
Deep Dive
The Anatomy of Derivative Courage
The consistent pattern of the biblical "be strong and courageous" commands — each one attached to a stated theological ground — reveals the specific structure of biblical courage. It is not the courage that is generated by suppressing fear or by accessing deeper reserves of personal resolve. It is the courage that is made available by the specific theological reality named in the ground: the presence of God, the power of God, the commitment of God to neither fail nor forsake. The courage is derivative because the strength it draws from is not the person's own.
This has a significant implication for how the commands are to be received. The person who reads "be strong and courageous" as an instruction to be braver — to increase interior reserves of fortitude — has misread the command. The person who reads it as an instruction to orient toward the specific theological reality named in the ground — the presence, power, and commitment of God rather than their own reserves — has read it correctly. The command is not the instruction to manufacture a feeling; it is the instruction to orient toward a specific resource already available.
When Courage is Tested: The David and Goliath Pattern
1 Samuel 17's account of David and Goliath is the narrative paradigm for derivative courage in the Old Testament. The feature of the story that is most theologically significant is not David's confidence but its specific ground. He does not say "I am not afraid of Goliath because I am brave." He says: "The LORD that delivered me out of the paw of the lion, and out of the paw of the bear, he will deliver me out of the hand of this Philistine" (v.37). The courage is grounded in the testimony of specific past deliverances. The track record of God's past faithfulness is the evidence base from which the confidence for the current challenge is drawn.
This is the pattern that Psalm 27:1's rhetorical questions embody: "The LORD is my light and my salvation; whom shall I fear?" The questions are the specific cognitive move of measuring the threatening opponent against the identified resource. When the resource is the LORD — light, salvation, the strength of the life — the measuring reveals that the opponent, however formidable in absolute terms, is of a different and smaller order. Courage is the settled orientation of a person who has made this comparison and arrived at its conclusion.
The Love Dimension of Courage
2 Timothy 1:7's identification of love as one of the three gifts that displace the spirit of deilia introduces a dimension of courage that the power-emphasis alone misses. The specific courage that love enables is not the courage of the person acting for their own survival or advancement; it is the courage of the person who is oriented toward others with sufficient concern that the self-protective calculation that produces deilia no longer governs. Paul's own courage in the face of imprisonment, beatings, and the prospect of death is consistently motivated, in his own account, by his love for the churches and his desire for the gospel's advance — not by the absence of personal fear.
This is the specific courage the New Testament most consistently honors: the courage of the shepherd who does not flee when the wolf comes, the apostle who stays in the city when the threat arrives, the person who speaks truth when silence would be safer. In each case, the courage is energized by a concern larger than the self-protective calculation that produces fearfulness. The love that displaces deilia is the agape oriented toward the genuine good of others at personal cost — the love that has the same character as the cross it draws its model from.
The Strength That Is Given to the Exhausted
Isaiah 40:29-30's specific identification of "the faint" and those "that have no might" as the recipients of God's given strength is not accidental. The theological pattern is consistent across both Testaments: divine strength is most available to the person who has arrived at the end of their own. This is the pattern of Moses at the Red Sea, Elijah under the juniper tree, Paul's thorn in the flesh — the person who receives the specific provision of God's strength has first arrived at the point where human strength has proven insufficient.
2 Corinthians 12:9-10 makes this most explicit: "My strength is made perfect in weakness... for when I am weak, then am I strong." The strength Paul is describing fills the space created by the acknowledgment of the end of human capacity. This has a profound practical implication: the person who maintains the posture of self-sufficiency closes the channel through which the divine strength flows. The courage that Scripture holds up as a genuine and available resource is most fully accessible at the precise point where the human resources for generating it have run out.
Practical Application
- When facing a situation that requires courage you do not feel you possess, apply the Joshua 1:9 pattern: identify the specific theological ground that accompanies the command in your situation rather than reaching for inner reserves of resolve. The command is not to feel braver; it is to orient toward the presence of God who goes with you into the specific situation and to draw from that presence rather than from your own interior supply.
- Practice the 1 Samuel 17 David-pattern of grounding current courage in the testimony of past deliverances: identify two or three specific past situations where God proved sufficient — specifically, where what was required exceeded what you had, and God provided. Name them specifically. The track record of past faithfulness is the specific evidence base from which confidence in the present challenge is drawn. Make the connection explicit: "The God who was sufficient in those situations is the same God present in this one."
- Apply the Isaiah 40:29-30 principle in seasons of exhaustion: identify and acknowledge specifically where your own strength has run out — the particular area where human capacity is no longer sufficient — and make that acknowledgment the specific starting point for the receiving of divine strength. The 2 Corinthians 12:9-10 pattern ("when I am weak, then am I strong") is not the paradox of a defeatist; it is the specific posture that opens the channel through which the strength of God flows most freely.
Common Questions
Is physical or emotional strength the same as the strength Scripture describes?
The strength Scripture describes in the context of courage is specifically the capacity to maintain faithful orientation and obedient action in threatening conditions — it is a capacity that may have physical, emotional, and spiritual dimensions, but is not reducible to any one of them. The person Paul describes as strong in Ephesians 6:10 is strong in the Lord rather than strong in their own constitution. The strength that Isaiah 40:31 describes as renewed through waiting on the LORD is the comprehensive capacity for continued faithfulness — "they shall walk, and not faint" — rather than specifically physical endurance. The strength that Nehemiah 8:10 identifies with the joy of the LORD is distinctly interior. Physical and emotional strength are good gifts that Scripture does not deprecate, but they are not the specific strength the biblical commands of courage are drawing from.
Can a person be courageous while still feeling afraid?
The biblical pattern consistently shows that the feeling of fear and the act of courage coexist. David's statement of the problem ("I am afraid") precedes and accompanies his statement of the response ("I will trust in thee," Psalm 56:3). Joshua's repeated "be strong and courageous" commands imply that the courage required some encouragement — that the fear was genuinely present. The women at the empty tomb "departed quickly from the sepulchre with fear and great joy" (Matthew 28:8). The biblical definition of courage is not the absence of fear but the specific orientation — the chosen, deliberate drawing from the theological ground — that makes faithful action possible in the presence of fear. The feeling is not the measure of the courage; the orientation and the action are.
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