The joy of the Lord is your strength. (Neh 8:10)
The LORD is my strength (Exodus 15:2) and His strength and power makes my way perfect. (2 Samuel 22:33) He armed me with strength for battle; made my adversaries bow at my feet. (Sam 22:40)
I will love thee, O LORD, my strength (Psalms 18:1) because you arm me with strength, and (Ps 18.32) you have guide me with your strength to your holy abode. (Ex 15:13)
As David strengthened himself in the Lord his God. (1 Sam. 30:6) so do I. For the LORD is my rock, and my fortress, and my deliverer; my God, my strength, in whom I trust; my buckler, and the horn of my salvation, and my high tower. (Psalms 18:2)
Let the words of my mouth, and the meditation of my heart, be acceptable in thy sight, O LORD, my strength, and my redeemer. (Psalms 19:14) and be not thou far from me, O LORD: O my strength, haste thee to help me. (Psalms 22:19)
Because if the LORD is my light and my salvation; whom shall I fear? the LORD is the strength of my life; of whom shall I be afraid? (Psalms 27:1)
He gives strength to the weary and increases the power of the weak. Even youths grow tired and weary, and young men stumble and fall; but those who hope in the Lord will renew their strength. They will soar on wings like eagles; they will run and not grow weary, they will walk and not be faint. (Isa 40:29-31) He the LORD is strong and he is my shield; my heart trusts in Him, and I am helped: therefore my heart greatly rejoiceth; and with my song will I praise Him. (Psalms 28:7)
The LORD is their strength, and he is the saving strength of His anointed. (Psalms 28:8)
Thus says the Lord, “Cursed is the man who trusts in mankind and makes flesh his strength, and whose heart turns away from the Lord. For he will be like a bush in the desert…but will live in stony wastes in the wilderness.…Blessed is the man who trusts in the Lord and whose trust is the Lord. For he will be like a tree planted by the water, that extends its roots by a stream and will not fear when the heat comes; but its leaves will be green, and it will not be anxious in a year of drought nor cease to yield fruit” (Jer. 17:5-8)
– ….and as your days, so shall your strength be. (Duet 33:25)
