Philippians 4: 13

I can do all things through Christ which strengtheneth me.

2 Corinthians 2:9

And he said unto me, My grace is sufficient for thee: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me.

Isaiah 40:29

He giveth power to the faint; and to them that have no might he increaseth strength.

Isaiah 40:31

but they that wait upon the LORD shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint.

Psalm 18:10

I will love thee, O LORD, my strength.

Ephesians 6:10

Finally, my brethren, be strong in the Lord, and in the power of his might