Philippians 1:16

but the former preach Christ out of rivalry, not sincerely, because they think they are adding bitterness to my bonds.

Philippians 1:7

It is but just that I should be thus mindful of you all, because I have you in my heart, and because in these fetters of mine and in my defense and confirmation of the gospel you are all my fellow partners in the privilege.

2 Corinthians 2:17

I am; for I am not like most, trafficking in the word of God, but rather from a sincere heart, like a man of God, I speak in Christ, in the very presence of God.

2 Corinthians 4:1-2

So then, as I have this ministry because of God's mercy to me, I do not lose heart.

Philippians 1:10

for testing things that differ, so that you may be pure and blameless until the day of Christ,

Philippians 1:12

I want you to know, brothers, that what has happened to me has turned out rather to help than to the hindrance of the gospel.

Treasury of Scripture Knowledge

Summary

The one preach Christ of contention, not sincerely, supposing to add affliction to my bonds:

Bible References

Not sincerely

Philippians 1:10
for testing things that differ, so that you may be pure and blameless until the day of Christ,
2 Corinthians 2:17
I am; for I am not like most, trafficking in the word of God, but rather from a sincere heart, like a man of God, I speak in Christ, in the very presence of God.
2 Corinthians 4:1
So then, as I have this ministry because of God's mercy to me, I do not lose heart.