The Apostle Paul
1 Corinthians 15:58KJV·traditional attribution

Therefore, my beloved brethren, be ye stedfast, unmoveable, always abounding in the work of the Lord, forasmuch as ye know that your labour is not in vain in the Lord.

John Calvin Reformed

58. Wherefore, my brethren Having satisfied himself that he had sufficiently proved the doctrine of the resurrection, he now closes his discussion with an exhortation; and this has much more force, than if he had made use of a simple conclusion with an affirmation.

Matthew Henry Presbyterian

In this verse we have the improvement of the whole argument, in an exhortation, enforced by a motive resulting plainly from it. I. An exhortation, and this threefold: - 1. That they should be stedfast - hedraioi, firm, fixed in the faith of the gospel, that gospel which he had preached and they had received, namely, That Christ died for our sins, and arose again...

Albert Barnes Presbyterian

Verse 58. Therefore, my beloved brethren. In view of the great and glorious truths which have been revealed to us respecting the resurrection. Paul closes the whole of this important discussion with an exhortation to that firmness in the faith which ought to result from truths so glorious, and from hopes so elevated as these truths are fitted to impart.