'Imprisonment' in the Bible

For it is only right for me to feel this way about you all, because I have you in my heart, since both in my imprisonment and in the defense and confirmation of the gospel, you all are partakers of grace with me.

so that my imprisonment in the cause of Christ has become well known throughout the whole praetorian guard and to everyone else,

and that most of the brethren, trusting in the Lord because of my imprisonment, have far more courage to speak the word of God without fear.

the former proclaim Christ out of selfish ambition rather than from pure motives, thinking to cause me distress in my imprisonment.