Departing thence. Paul did not change his lodging which he had with Priscilla and Aquila, because he was weary of their company; but that he might more familiarly insinuate himself and come in favor with the Gentiles. For I suspect that this Justus, of whom Luke maketh mention, was rather a Gentile than a Jew. Neither doth the highness of the synagogue any whit hinder; for the Jews were scattered abroad, so that they had no certain place of the city to dwell in. Yea, it seemeth that Paul did make choice of the house which did join to the synagogue, that he might the more nettle the Jews. The title and commendation ascribed to Justus confirmeth this opinion; for it is said that he was a worshipper of God. For though the Jews had not sincere religion, yet because they did all profess the worship of God, it might have seemed that godliness took place commonly in all the whole nation. But because it was a rare matter among the Gentiles to worship God if any drew near unto true godliness, he hath this singular testimony given him which is set against idolatry. Also, I think that the Corinthians, of whom Luke speaketh shortly after, were Gentiles. Nevertheless, lest we should think that Paul's labor was altogether fruitless which he bestowed among the Jews, Luke reckoneth up two of them which believed, Crispus and Sosthenes, of whom Paul himself speaketh in the first chapter of the First Epistle to the Corinthians, (1-Corinthians 1:1,14.) For in his salutation he maketh Sosthenes his fellow in office, after that he saith that he baptized Crispus. I take it that he is called the ruler of the synagogue, not as if he alone did bear rule and had the government, because Sosthenes hath the same title given him shortly after, but because he was one of the chief men.

A certain man's house - Probably he had become a convert to the Christian faith.
Joined hard - Was near to the synagogue.

And he departed thence - From his former lodging, or that quarter of the city where he had dwelt before with Aquila and Priscilla; and went to lodge with Justus, apparently a proselyte of the gate. This person is called Titus, and Titus Justus, in several MSS. and versions.

And he departed thence,..... Not from Corinth, but from the synagogue:
and entered into a certain man's house named Justus; he did not return to Aquila and Priscilla, because they were Jews, lest he should be thought not to abide by his words, that he would henceforth go to the Gentiles; wherefore as he came out of the synagogue, he turned into a house adjoining to it, which belonged to one Justus: in one copy of Beza's, and in some others, and in the Vulgate Latin version, he is called "Titus Justus"; and in the Arabic version, "Titus the son of Justus"; the Syriac version only reads "Titus": whether this is not the same Titus, who afterwards was a companion of the apostle, and to whom he wrote an epistle, may be inquired.
One that worshipped God; a Gentile, but a religious man, such an one as Cornelius: he might be a proselyte either of the gate, or of righteousness; though if he was the same with Titus, he could not be the latter, because he was not circumcised, Galatians 2:3 whose house joined hard to the synagogue; had this man been a Jew, his house might very well have been taken for the house which was , "near to the synagogue", in which travellers were entertained, and ate, and drank, and lodged (i); and that he was the person appointed to take care of them, and so a very suitable house for Paul, a stranger, to take up his lodging in. The Ethiopic version adds, very wrongly, taking it from the beginning of the next verse, "because he was the ruler of the synagogue"; as if Justus was the ruler of the synagogue; and this the reason why his house was so near; whereas not he, but Crispus, was the ruler, as follows.
(i) Vid. Maggid Misna in Maimon. Hilchot Sabbat, c. 29. sect. 3. & Gloss. in T. Bab. Pesachim, fol. 10. 1. & in Bava Bathra, fol. 3. 2.

The Lord knows those that are his, yea, and those that shall be his; for it is by his work upon them that they become his. Let us not despair concerning any place, when even in wicked Corinth Christ had much people. He will gather in his chosen flock from the places where they are scattered Thus encouraged, the apostle continued at Corinth, and a numerous and flourishing church grew up.

he departed thence, and entered into a certain man's house, named Justus--not changing his lodging, as if Aquila and Priscilla up to this time were with the opponents of the apostle [ALFORD], but merely ceasing any more to testify in the synagogue, and henceforth carrying on his labors in this house of Justus, which "joining hard to the synagogue," would be easily accessible to such of its worshippers as were still open to light. Justus, too, being probably a proselyte, would more easily draw a mixed audience than the synagogue. From this time forth conversions rapidly increased.

He departed thence. Left the synagogue and taught no more there, but secured a place of teaching in the house of Justus, near by. The Revision reads, "Titus Justus." Some have supposed this man to be the Titus to whom the epistle was afterwards written.
Crispus, the chief ruler. Though the synagogue opposed, its president became a Christian with all his family. Paul baptized him with his own hands (1-Corinthians 1:14).
Many of the Corinthians hearing believed, and were baptized. This describes the gospel process of conversion. The word is preached, faith comes by hearing (Romans 10:17), confession (Romans 10:10) and baptism follow belief. This is the invariable order in the New Testament.
Spake the Lord to Paul. In some way he manifested his presence and cheered him in his work, by the assurance of great success. We know that the result was not only a flourishing church in Corinth, to which two epistles were written, but churches through Achaia, the province of which Corinth was the capital (2-Corinthians 1:1.)
He continued there a year and six months. While here, besides his other labors, he wrote the two epistles to the Thessalonians, the first of that grand series of letters which form so precious a feature of the New Testament.

He went into the house of one named Justus - A Gentile, and preached there, though probably he still lodged with Aquila.