And he would not: but went and cast him into prison, till he should pay the debt.
The disciples asked who would be greatest in the kingdom, not from hunger for holiness but for name and rank. They had dreamed of a temporal kingdom with external pomp and power, fastened upon Christ's words of glory while forgetting His sufferings. Many love to hear of privileges and crown while overlooking the yoke and cross.
AI summary
Commenting on Matthew 18:1-35
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...
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.