1 Corinthians 15:10
But by God's grace I am what I am. The grace he showed me did not go for nothing; no, I have done far more work than all of them ??though it was not I but God's grace at my side.
1 Corinthians 15:58
Well then, my beloved brothers, hold your ground, immovable; abound in work for the Lord at all times, for you may be sure that in the Lord your labour is never thrown away.
Galatians 6:9
Never let us grow tired of doing what is right, for if we do not faint we shall reap our harvest at the opportune season.
Colossians 1:29
I labour for that end, striving for it with the divine energy which is a power within me.