The unusual word here is "be patient/have patience," which Jesus uses only three times. It more literally means "delay anger" or "withhold anger." The other uncommon word here is translated as "besought" and "begged" but it literally means "called out" and isn't a common word for "ask" or "beg."
The unusual word here is "be patient/have patience," which Jesus uses only three times. It more literally means "delay anger" or "withhold anger."Very like Matthew 18:26 where the servant fell down before his master, and kowtowed. In this verse, the fellow servant falls down but "called out." In the earlier verse, "all things" were paid back, but not here. Both of these changes may be a recognition that the king is a symbol for the Divine, to whom we should bow down and to whom we owe all things.
Christ's Words in Matthew as a Guide to 40 Days of Prayer.