But I said, I have laboured in vain, I have spent my strength for nought and vanity: yet surely my judgement is with the LORD, and my recompence with my God.
But by the grace of God I am what I am: and his grace which was bestowed upon me was not found vain; but I laboured more abundantly than they all: yet not I, but the grace of God which was with me.
Wherefore, my beloved brethren, be ye stedfast, unmoveable, always abounding in the work of the Lord, forasmuch as ye know that your labour is not vain in the Lord.
And I went up by revelation; and I laid before them the gospel which I preach among the Gentiles, but privately before them who were of repute, lest by any means I should be running, or had run, in vain.
And for this cause we also thank God without ceasing, that, when ye received from us the word of the message, even the word of God, ye accepted it not as the word of men, but, as it is in truth, the word of God, which also worketh in you that believe.
For this cause I also, when I could no longer forbear, sent that I might know your faith, lest by any means the tempter had tempted you, and our labour should be in vain.
when he shall come to be glorified in his saints, and to be marveled at in all them that believed (because our testimony unto you was believed) in that day.