1 Corinthians 15:10
it is by the divine favour that I am what I am: and his favour to me was not in vain; no, I laboured more than they all: yet it was not I, it was the divine favour which assisted me.
1 Corinthians 15:58
therefore, my beloved brethren, be ye inflexibly steady, and continually surpass others in the work of the Lord, knowing that he will not leave your christian labour unrewarded.
Galatians 6:9
let us then not be weary in doing good, for in due season we shall reap, if we be not tired.
Colossians 1:29
this is what I earnestly strive to effect, by virtue of that power, which effectually operates in me.