Went for entered, A.V.; the house of a certain man for a certain man's house, A.V.; Titus Justus for Justus, A.V. and T.R. Thence. Clearly from the synagogue, where he had been preaching to the Jews, not from Aquila's house, as Alford and others.
It does not appear to be a question here of where Paul lodged, but where he preached. Justus had probably a large room, which he gave Paul the use of for his sabbath and other meetings. As Howson truly says, he continued to "lodge" ( μένειν) with Aquila and Priscilla.
It is only said that he "came" ( ἧλθεν) to the house of Justus from the synagogue. So Renan, "Il enseigna desormais dans la maison de Titius Justus". One that worshipped God ( σεβομένον τὸν θεόν); i.
e. a Greek proselyte of the gate (see Acts 13:43, Acts 13:50; Acts 16:14; Acts 17:4, Acts 17:17, etc.) Cornelius is called εὐσεβὴς καὶ φοβούμενος τὸν θεόν. Whose house, etc. Either his proximity to the synagogue had led to his attending there, or, being already a proselyte, he had taken a house hard by for the convenience of attending.
Joined hard; ἧν συνομοροῦσα, found only here either in the New Testament or elsewhere. ὁμορέω occurs in Plutarch; συνόμορος is also a word (Steph., 'Thesaur.').