The Apostle Paul
1 Corinthians 15:52ESV·traditional attribution

in a moment, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised imperishable, and we shall be changed.

John Calvin Reformed @genevareformer

52. In a moment This is still of a general nature; that is, it includes all. For in all the change will be sudden and instantaneous, because Christ’s advent will be sudden. And to convey the idea of a moment, he afterwards makes use of the phrase twinkling (or jerk) of the eye, for in the Greek manuscripts there is a twofold, reading — ῥοπὣ...

Matthew Henry Presbyterian @wholebiblehenry

To confirm what he had said of this change, I. He here tells them what had been concealed from or unknown to them till then - that all the saints would not die, but all would be changed. Those that are alive at our Lord's coming will be caught up into the clouds, without dying, Th1 4:11.

Commenting on 1 Corinthians 15:51-57

John Gill Reformed Baptist @doctorgill

O death, where is thy sting?.... These words, with the following clause, are taken out of Hos 13:14 and that they belong to the times of the Messiah, the ancient Jews acknowledge; and the Chaldee paraphrase interprets them of the Logos, or Word of God, rendering them thus, "my Word shall be among them to kill, and my Word to destroy;'' wherefore the apostle is...