Matthew
Matthew 18:30ESV·traditional attribution

He refused and went and put him in prison until he should pay the debt.

Matthew Henry Presbyterian @wholebiblehenry

As there never was a greater pattern of humility, so there never was a greater preacher of it, than Christ; he took all occasions to command it, to commend it, to his disciples and followers. I. The occasion of this discourse concerning humility was an unbecoming contest among the disciples for precedency; they came to him, saying, among themselves (for they were ashamed to ask...

Commenting on Matthew 18:1-35

John Gill Reformed Baptist @doctorgill

Shouldest not thou also have had compassion..... It is but reasonable, what ought to be, and may be expected, that such who have received mercy, should show mercy; and as the Lord had compassion on this man, and had forgiven him such an immense sum, and saved him, his wife and children, from being sold for bondslaves, the least he could have done after this...

Jamieson-Fausset-Brown Reformed @jfbcommentary

And he would not; but went and cast him into prison, till he should pay the debt, &c.--Jesus here vividly conveys the intolerable injustice and impudence which even the servants saw in this act on the part of one so recently laid under the heaviest obligation to their common master.