Luke 12:42

ὁ κύριος. St Luke uses this later designation of our Lord about 12 times.

τίς ἄρα ἐστὶν ὁ πιστὸς οἰκονόμος ὁ φρόνιμος; Our Lord, in the deeply instructive method which He often adopted, did not answer the question, but taught the only lesson which was needful for the questioner. St Paul perhaps refers to these words of Christ in 1 Corinthians 4:1-2.

ἐν καιρῷ τὸ σιτομέτριον. “Take heed therefore unto yourselves, and to all the flock over which the Holy Ghost hath made you overseers, to feed the church of God,” Acts 20:28. σιτομέτριον (diarium) is found only in St Luke.