Then called he them in, and lodged them. And on the morrow Peter went away with them, and certain brethren from Joppa accompanied him. Then called he them in, etc. - They had already walked a long journey in a short time, and needed refreshment; and it was thought expedient they should rest that night with Simon the tanner.
Certain brethren from Joppa - They were six in number, as we learn from Acts 11:12. It was necessary that there should be several witnesses of the important transactions which were about to take place; as on no slight evidence would even the converted Jews believe that repentance unto life, and the Holy Spirit, should be granted to the Gentiles.