Deuteronomy 6:5

6:5 You must love the Lord your God with your whole mind, your whole being, and all your strength.

Ecclesiastes 9:10

9:10 Whatever you find to do with your hands,

do it with all your might,

because there is neither work nor planning nor knowledge nor wisdom in the grave,

the place where you will eventually go.

Colossians 3:23

3:23 Whatever you are doing, work at it with enthusiasm, as to the Lord and not for people,