He giveth power to the faint; and to them that have no might he increaseth strength.
Isaiah 40:29 KJV
The Christian is renewed in the inner man day by day. Supernatural Zoe, God life, dwells in every believer. Say so!
For which cause we faint not; but though our outward man perish, yet the inward man is renewed day by day. 2 Corinthians 4:16 KJV
Let the weak say, I am strong! We are filled with supernatural strength in Christ Jesus.
Beat your plowshares into swords, and your pruninghooks into spears: let the weak say, I am strong. Joel 3:10 KJV
Finally, my brethren, be strong in the Lord, and in the power of his might.
Ephesians 6:10 KJV