1 Corinthians 15:31

“I protest by your rejoicing, etc.] Some copies read, “our rejoicing”; and so the Ethiopic version, which seems most natural and easy; since it follows, which I have in Christ Jesus our Lord; who in him could rejoice and glory in afflictions and sufferings, which he endured as a preacher of the Gospel for his sake; and which being certain and evident, and what might be depended upon, he makes a protestation by it, saying, I die daily; which is to be understood, not in a spiritual sense of dying unto sin; he was dead unto sin, as to its damning power, through the death of Christ, and as to its governing power, through the Spirit and grace of Christ, but still it was living and dwelling in him;…”

“by your rejoicing--by the glorying which I have concerning you, as the fruit of my labors in the Lord. Some of the earliest manuscripts and fathers read "our," with the same sense. BENGEL understands "your rejoicing," to be the enjoyable state of the Corinthians, as contrasted with his dying daily to give his converts rejoicing or glorying (Co1 4:8; Co2 4:12, Co2 4:15; Eph 3:13; Phi 1:26). But the words, "which I have," favor the explanation--"the rejoicing which I have over you." Many of the oldest manuscripts and Vulgate insert "brethren" here. I die daily--This ought to stand first in the sentence, as it is so put prominently forward in the Greek. I am day by day in sight of death,…”

“I protest - (νὴ nē). This is a particle of swearing, and denotes a strong asseveration. The subject was important; it deeply interested his feelings; and he makes in regard to it a strong protestation; compare John 3:5. “I solemnly affirm, or declare.” By your rejoicing - Many manuscripts here read “by our rejoicing, but the correct reading is doubtless that which is in the present Greek text, by your rejoicing. The meaning of the phrase, which is admitted by all to be obscure, is probably, “I protest, or solemnly declare by the glorying or exultation which I have on your account; by all my ground of glorying in you; by all the confident boasting and expectation which I have of your…”

“I protest by your rejoicing, which I have - Which love makes my own. I die daily - I am daily in the very jaws of death. Beside that I live, as it were, in a daily martyrdom. 1 Corinthians 15:32”

“protest: Gen 43:3; Sa1 8:9; Jer 11:7; Zac 3:6; Phi 3:3 your: "Some read, our." Co2 1:12, Co2 2:14; Th1 2:19, Th1 3:9 die: Co1 4:9-13; Act 20:23; Rom 8:36; Co2 4:10, Co2 4:11, Co2 11:23 1 Corinthians 15:32”