2Ti 4:11. Λουκᾶς, Luke) Luke has not brought down the history of the Acts of the Apostles to this period.-μόνος, alone) He is speaking of his companions; for he had many other friends present: 2Ti 4:21.-εὔχρηστος, profitable) more than formerly, Act 13:13; Act 15:38 : comp. Phm 1:11. Demas apostatizes: Mark recovers himself: but he (viz. Mark), who had gone away in the case of an easier undertaking, ought now to be present in a time of more serious difficulties.