Philippians 1:5, 12, 16, 27

for your fellowship in the gospel from the first day until now

But I want you to know, brethren, that the things which happened to me have actually turned out for the furtherance of the gospel

The former preach Christ from selfish ambition, not sincerely, supposing to add affliction to my chains

Only let your conduct be worthy of the gospel of Christ, so that whether I come and see you or am absent, I may hear of your affairs, that you stand fast in one spirit, with one mind striving together for the faith of the gospel