Philemon 1:15-17

Perhaps it was for this reason that he was separated from you for a while, so that you would have him back forever, no longer as a slave, but [as someone] more than a slave, as a brother [in Christ], especially dear to me, but how much more to you, both in the flesh [as a servant] and in the Lord [as a fellow believer]. [Col 4:9] So if you consider me a partner, welcome and accept him as you would me.