Albert Barnes on Matthew 18:28-29

He found one of his fellowservants, which owed him an hundred pence. The Penny was a Roman coin, worth about fourteen cents [seven pence] of our money. Consequently, this debt was about fourteen dollars [three pounds three shillings]-- a very small sum compared with what had been forgiven to the first servant. Perhaps our Saviour, by this, meant to teach that the offences which our fellow-men commit against us are very small and insignificant, compared with our offences against God. Since God has forgiven us so much, we ought to forgive each other the small offences which are committed.

Took him by the throat. Took him in a violent and rough manner; half choked, or throttled him. This was the more criminal and base, as he had himself been so kindly treated, and dealt so mildly with, by his Lord.

Besought. Entreated, pleaded with him.

(2) "Penny" "The Roman penny is the 8th part of an ounce, which at 5s, the ounce, is 7d. half-penny." Mt 20:2

(w) "saying" Mt 18:26