The Apostle Paul
Romans 13:8ESV·traditional attribution

Owe no one anything, except to love each other, for the one who loves another has fulfilled the law.

John Calvin Reformed @genevareformer

8. To no one owe ye, etc. There are those who think that this was not said without a taunt, as though Paul was answering the objection of those who contended that Christians were burdened in having other precepts than that of love enjoined them.

Matthew Henry Presbyterian @wholebiblehenry

We are here taught a lesson of justice and charity. I. Of justice (Rom 13:7): Render therefore to all their dues, especially to magistrates, for this refers to what goes before; and likewise to all with whom we have to do. To be just is to give to all their due, to give every body his own.

Commenting on Romans 13:7-10

John Gill Reformed Baptist @doctorgill

Owe no man anything,.... From the payment of dues to magistrates the apostle proceeds to a general exhortation to discharge all sorts of debts; as not to owe the civil magistrate any thing, but render to him his dues, so to owe nothing to any other man, but make good all obligations whatever, as of a civil, so of a natural kind.