But by the grace of God I am what I am, and His grace toward me was not in vain; but I labored more abundantly than them all, yet not I, but the grace of God which was with me.

So then, my beloved brothers, be steadfast, immovable, always abounding in the work of the Lord, knowing that your labor is not in vain in the Lord.

And while we do good, let us not lose heart, for in due season we shall reap if we do not become weary.

for which I also labor, striving according to His working which is working in me with power.