Matthew 1:24-25

Joseph hesitates no more : immediate energetic action takes the place of painful doubt. Euthymius asks: Why did he so easily trust the dream in so great a matter? and answers: because the angel revealed to him the thought of his own heart, for he understood that the messenger must have come from God, for God alone knows the thoughts of the heart. ἐγερθεὶς … Κυρίου : rising up from the sleep (τοῦ ὕπνου), in which he had that remarkable dream, on that memorable night, he proceeded forthwith to execute the Divine command, the first, chief, perhaps sole business of that day. καὶ παρέλαβεν … αὐτοῦ. He took Mary home as his wife, that her off-spring might be his legitimate son and heir of David's throne.