The Apostle Paul
1 Corinthians 15:11ESV·traditional attribution

Whether then it was I or they, so we preach and so you believed.

John Calvin Reformed @genevareformer

11. Whether I or they Having compared himself with the other Apostles, he now associates himself with them, and them with him, in agreement as to their preaching. “I do not now speak of myself, but we have all taught so with one mouth, and still continue to teach so.” For the verb κηρύσσομεν (we preach) is in the present tense — intimating a continued act, or perseverance in teaching.

Matthew Henry Presbyterian @wholebiblehenry

It is the apostle's business in this chapter to assert and establish the doctrine of the resurrection of the dead, which some of the Corinthians flatly denied, Co1 15:12. Whether they turned this doctrine into allegory, as did Hymeneus and Philetus, by saying it was already past (Ti2 2:17, Ti2 2:18), and several of the ancient heretics, by making it mean no more than a...

Commenting on 1 Corinthians 15:1-11

John Gill Reformed Baptist @doctorgill

Therefore whether it were I or they,.... By whom Christ was seen first or last, we were all eyewitnesses of him; or whether I am the least, and others the chief of the apostles; or whether I have laboured more abundantly than they all, this matters not: so we preach; we agree in our ministry to preach Christ, and him only, and with one heart...