I can do all things through him who strengthens me." ~ Philippians 4:13

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 41:10

But they who wait for the Lord shall renew their strength; they shall mount up with wings like eagles; they shall run and not be weary; they shall walk and not faint." ~ Isaiah 40:31

He gives strength to the weary and increases the power of the weak." ~ Isaiah 40:29

The Lord is my strength and my song, and he has become my salvation; this is my God, and I will praise him, my father's God, and I will exalt him" ~ Exodus 15:2

Finally, be strong in the Lord and in the strength of his might." ~ Ephesians 6:10