2 Chronicles 15:7 KJV
Be ye strong therefore, and let not your hands be weak: for your work shall be rewarded.
1 Samuel 16:23 KJV
And it came to pass, when the evil spirit from God was upon Saul, that David took an harp, and played with his hand: so Saul was refreshed, and was well, and the evil spirit departed from him.
Psalm 90:12 KJV
So teach us to number our days, that we may apply our hearts unto wisdom.