For Christ has not sent me to baptise, but to preach glad tidings; not in wisdom of word, that the cross of the Christ may not be made vain.

And again, The Lord knows the reasonings of the wise that they are vain.

But I have used none of these things. Now I have not written these things that it should be thus in my case; for it were good for me rather to die than that any one should make vain my boast.

by which also ye are saved, (if ye hold fast the word which I announced to you as the glad tidings,) unless indeed ye have believed in vain.

But by God's grace I am what I am; and his grace, which was towards me, has not been vain; but I have laboured more abundantly than they all, but not I, but the grace of God which was with me.

but if Christ is not raised, then, indeed, vain also is our preaching, and vain also your faith.

but if Christ be not raised, your faith is vain; ye are yet in your sins.

So then, my beloved brethren, be firm, immovable, abounding always in the work of the Lord, knowing that your toil is not in vain in the Lord.