Isaiah 40:29

2 Corinthians 12:9-10 NIV
But he said to me, “My grace is sufficient for you, for my power is made perfect in weakness. ” Therefore I will boast all the more gladly about my weaknesses, so that Christ’s power may rest on me. That is why, for Christ’s sake, I delight in weaknesses, in insults, in hardships, in persecutions, in difficulties. For when I am weak, then I am strong.

Colossians 1:11 NIV
being strengthened with all power according to his glorious might so that you may have great endurance and patience,

Deuteronomy 33:25 NIV
The bolts of your gates will be iron and bronze, and your strength will equal your days.

Hebrews 11:34 NIV
quenched the fury of the flames, and escaped the edge of the sword; whose weakness was turned to strength; and who became powerful in battle and routed foreign armies.

Isaiah 41:10 NIV
So do not fear, for I am with you; do not be dismayed, for I am your God. I will strengthen you and help you; I will uphold you with my righteous right hand.

Isaiah 50:4 NIV
The Sovereign Lord has given me a well-instructed tongue, to know the word that sustains the weary. He wakens me morning by morning, wakens my ear to listen like one being instructed.

Jeremiah 31:25 NIV
I will refresh the weary and satisfy the faint.”

Philippians 4:13 NIV
I can do all this through him who gives me strength.

Zechariah 10:12 NIV
I will strengthen them in the Lord and in his name they will live securely, ” declares the Lord.