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 every one of them, yet not I, but the grace of God which was with me.

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

And let us not grow weary while doing good, for in due time we shall reap if we do not faint.

To this end I also labor, striving according to His working which works in me mightily.