1 Corinthians 16:13,14 (KJV)
13 Watch ye, stand fast in the faith, quit you like men, be strong.
14 Let all your things be done with charity.
Let your mind be likened unto Christ. Be strong in your faith through constant prayer and lifting up others in the love of God.
When I am weak, I know that my Lord God will give me the strength I need. He is my healer when I am sick.