9 The next day, as they went on their journey and drew near the city, Peter went up on the housetop to pray, about the sixth hour. 10 Then he became very hungry and wanted to eat; but while they made ready, he fell into a trance 11 and saw heaven opened and an object like a great sheet bound at the four corners, descending to him and let down to the earth. 12 In it were all kinds of four-footed animals of the earth, wild beasts, creeping things, and birds of the air. 13 And a voice came to him, "Rise, Peter; kill and eat." 14 But Peter said, "Not so, Lord! For I have never eaten anything common or unclean." 15 And a voice spoke to him again the second time, "What God has cleansed you must not call common." 16 This was done three times. And the object was taken up into heaven again. 17 Now while Peter wondered within himself what this vision which he had seen meant, behold, the men who had been sent from Cornelius had made inquiry for Simon's house, and stood before the gate.
Matthew Henry's Commentary on Acts 10:9-17
Commentary on Acts 10:9-18
(Read Acts 10:9-18)
The prejudices of Peter against the Gentiles, would have prevented his going to Cornelius, unless the Lord had prepared him for this service. To tell a Jew that God had directed those animals to be reckoned clean which were hitherto deemed unclean, was in effect saying, that the law of Moses was done away. Peter was soon made to know the meaning of it. God knows what services are before us, and how to prepare us; and we know the meaning of what he has taught us, when we find what occasion we have to make use of it.