Finally, be strong in the Lord and in His mighty power. Ephesians 6:10
He gives power to the faint and increases the strength of the weak. Even youths grow tired and weary, and young men stumble and fall. But those who wait upon the Lord will renew their strength; they will mount up with wings like eagles; they will run and not grow weary, they will walk and not faint. Isaiah 40:29-31
The Lord your God is among you; He is mighty to save. He will rejoice over you with gladness; He will quiet you with His love; He will rejoice over you with singing. Zephaniah 3:17
The Lord will give strength unto his people; the Lord will bless his people with peace. Psalm 29:11