Philippians 1:16

“The one preach Christ of contention, etc.] That is, those that preached of envy and strife, an not of good will to Christ, to the Gospel, to the souls of men, or to the apostle; and though they preached Christ, yet not sincerely or “purely”; not but that they delivered the sincere milk of the word, and preached the pure Gospel of Christ, without any mixture and adulteration; but then they did not preach it with a sincere heart, and a pure intention; for this respects not the doctrine they preached, but their views in it, which were not honest and upright; they did not preach Christ from a principle of love to his person, and from an inward experience of the power of his Gospel, and a zealous…”

“The oldest manuscripts transpose these verses, and read, "These (last) indeed out of love (to Christ and me), knowing (the opposite of 'thinking' below) that I am set (that is, appointed by God, Th1 3:3) for the defense of the Gospel (Phi 1:7, not on my own account). But the others out of contention (or rather, 'a factious spirit'; 'cabal'; a spirit of intrigue, using unscrupulous means to compass their end; 'self-seeking' [ALFORD]) proclaim (the Greek is not the same as that for 'preach,' but, 'announce') Christ, not sincerely (answering to 'but of a spirit of intrigue,' or 'self-seeking'). Literally, 'not purely'; not with a pure intention; the Jewish leaven they tried to introduce was in…”

“The one preach Christ of contention - So as to form parties, and to produce strifes among his professed followers. Not sincerely - Not “purely” - ἁγνῶς hagnōs - not with pure motives or intentions. Their real aim is not to preach Christ, but to produce difficulty, and to stir up strife. They are ambitious people, and they have no real regard for the welfare of the church and the honor of religion. Supposing to add affliction to my bonds - To make my trial the greater. How they did this is unknown. Perhaps they were those who were strongly imbued with Jewish notions, and who felt that his course tended to diminish respect for the law of Moses, and who now took this opportunity to promote…”

“not sincerely: Phi 1:10; Co2 2:17, Co2 4:1, Co2 4:2 supposing: Job 6:14, Job 16:4; Psa 69:26 Philippians 1:17”