'Own' in the Bible

I appeal to you for my [own spiritual] child Onesimus, whom I have fathered [in the faith] while a captive in these chains.

I have sent him back to you in person, that is, like sending my very heart.

I, Paul, write this with my own hand, I will repay it in full (not to mention to you that you owe to me even your own self as well).