He assayed to join himself to the disciples - Επειρατο κολλασθαι, He endeavored to get closely united to them, to be in religious fellowship with them.

Believed not that he was a disciple - They did not suppose it possible that such a person could be converted to the faith of Christ. The full power of Divine grace, in the conversion of the soul, was not yet completely known.

when.

Acts 22:17 And it came to pass, that, when I was come again to Jerusalem, even while I prayed in the temple, I was in a trance;

Acts 26:20 But showed first to them of Damascus, and at Jerusalem, and throughout all the coasts of Judaea, and then to the Gentiles...

Galatians 1:17-19 Neither went I up to Jerusalem to them which were apostles before me; but I went into Arabia, and returned again to Damascus...

he assayed.

Acts 9:19 And when he had received meat, he was strengthened. Then was Saul certain days with the disciples which were at Damascus.

Acts 4:23 And being let go, they went to their own company, and reported all that the chief priests and elders had said to them.

but.

Matthew 10:17-19 But beware of men: for they will deliver you up to the councils, and they will whip you in their synagogues...

Matthew 24:10 And then shall many be offended, and shall betray one another, and shall hate one another.

Galatians 2:4 And that because of false brothers unawares brought in, who came in privately to spy out our liberty which we have in Christ Jesus...

Copies of Christ's Manner
'And Peter said unto him, Aeneas, Jesus Christ maketh thee whole: arise, and make thy bed.... 40. But Peter put them all forth, and kneeled down and prayed; and, turning him to the body, said, Tabitha, arise.--ACTS ix. 34, 40. I have put these two miracles together, not only because they were closely connected in time and place, but because they have a very remarkable and instructive feature in common. They are both evidently moulded upon Christ's miracles; are distinct imitations of what Peter had …
Alexander Maclaren—Expositions of Holy Scripture: The Acts

Sharon. Caphar Lodim. The Village of those of Lydda.
Between Lydda and the sea, a spacious valley runs out, here and there widely spreading itself, and sprinkled with villages. The holy page of the New Testament [Acts 9:35] calls it Saron: and that of the Old calls the whole, perhaps, or some part of it, 'the plain of Ono,' Nehemiah 6:2, 11:35; 1 Chronicles 8:12... The wine of Sharon is of great fame, with which they mixed two parts water: and remarkable is that they say concerning the houses of Sharon. R. Lazar saith, "He that builds a brick house …
John Lightfoot—From the Talmud and Hebraica

Caphar Tebi.
And this village neighboured upon Lydda, situate on the east of it. "R. Eleazar had a vineyard of four years' growth; on the east of Lydda, near Caphar Tebi." Of it there is this mention also:-- "They sometime brought a chest full of bones from Caphar Tebi, and they placed it openly in the entrance to Lydda. Tudrus the physician and the rest of the physicians go forth"--(namely, that they might judge, whether they were the bones of men or no; and thereby, whether they were to be esteemed clean or …
John Lightfoot—From the Talmud and Hebraica