Rom 14:8, 1 Cor 10:31, Eph 6:19-20, Acts 21:13, Col 1:24
Paul, who was in prison, wanted to preach the gospel, regardless of whether the outcome of his trial was release or death. (Phil 1:20-21, Eph 6:19-20)
Phil 1:20 According to my earnest expectation and my hope, that in nothing I shall be ashamed, but that with all boldness, as always, so now also Christ shall be magnified in my body, whether it be by life, or by death. 21 For to me to live is Christ, and to die is gain.
Eph 6:19 And for me, that utterance may be given unto me, that I may open my mouth boldly, to make known the mystery of the gospel, 20 For which I am an ambassador in bonds: that therein I may speak boldly, as I ought to speak.
Paul suffered many hardships while preaching the gospel and passed many obstacles to death. Paul was ready to die for the sake of preaching the gospel. (Rom 14:8, Acts 21:13, Col 1:24)
Rom 14:8 For whether we live, we live unto the Lord; and whether we die, we die unto the Lord: whether we live therefore, or die, we are the Lord's.
Acts 21:13 Then Paul answered, What mean ye to weep and to break mine heart? for I am ready not to be bound only, but also to die at Jerusalem for the name of the Lord Jesus.
Col 1:24 Who now rejoice in my sufferings for you, and fill up that which is behind of the afflictions of Christ in my flesh for his body's sake, which is the church: