This command given unto Abraham we read of, Genesis 12:1,5,6; and it is here the rather spoken of by St. Stephen, to prove that Abraham was in the favour of God, and did truly serve him, before he ever saw the land of Canaan, and before the ceremonial law was given by Moses, and, much more, before the temple was built; and therefore it could not be blasphemy in him to hold that God might be served without those ceremonies, and worshipped elsewhere than in Jerusalem. The land which I shall show thee; this was the glory of Abraham's faith, that it submitted absolutely to God, and enabled Abraham to go he knew not whither, Hebrews 11:8, for God did not so much as name the place he would have him go unto.
Related Commentaries of Acts 7:3
Acts 7:3
3 And said unto him, Get thee out of thy country, and from thy kindred, and come into the land which I shall shew thee.