1:15 Some indeed preach Christ even of envy and strife. The motives of all preachers are not pure. Some still preach Christ, full of envy for other preachers, and some from a love of strife. Those envious of Paul were probably Judaizing Christians. See Php 1:16.
1:15-16 Some indeed preach Christ out of contention - Envying St. Paul's success, and striving to hurt him thereby. Not sincerely - From a real desire to glorify God. But supposing - Though they were disappointed. To add more affliction to my bonds - By enraging the Romans against me.
1:12-20 The apostle was a prisoner at Rome; and to take off the offence of the cross, he shows the wisdom and goodness of God in his sufferings. These things made him known, where he would never have otherwise been known; and led some to inquire after the gospel. He suffered from false friends, as well as from enemies. How wretched the temper of those who preached Christ out of envy and contention, and to add affliction to the bonds that oppressed this best of men! The apostle was easy in the midst of all. Since our troubles may tend to the good of many, we ought to rejoice. Whatever turns to our salvation, is by the Spirit of Christ; and prayer is the appointed means of seeking for it. Our earnest expectation and hope should not be to be honoured of men, or to escape the cross, but to be upheld amidst temptation, contempt, and affliction. Let us leave it to Christ, which way he will make us serviceable to his glory, whether by labour or suffering, by diligence or patience, by living to his honour in working for him, or dying to his honour in suffering for him.