Genesis 12:1

We have here the call by which Abram was removed out of the land of his nativity into the land of promise, which was designed both to try his faith and obedience, and also to set him apart for God. The circumstances of this call we may be somewhat helped to the knowledge of, from Stephen's speech, Acts 7:2, where we are told, That the God of glory appeared to him to give him this call, appeared in such displays of his glory as left Abram no room to doubt. God spake to him after in divers manners: but this first time, when the correspondence was to be settled, he appeared to him as the God of glory, and spake to him. That this call was given him in Mesopotamia, before he dwelt in Charran, and in obedience to this call, he came out of the land of the Chaldeans, and dwelt in Charran or Haran about five years, and from thence, when his father was dead, by a fresh command, he removed him into the land of Canaan. Some think Haran was in Chaldea, and so was still a part of Abram's country; or he having staid there five years, began to call it his country, and to take root there, till God let him know this was not the place he was intended for. Get thee out of thy country — Now, By this precept he was tried whether he loved God better than he loved his native soil, and dearest friends, and whether he could willingly leave all to go along with God. His country was become idolatrous, his kindred and his father's house were a constant temptation to him, and he could not continue with them without danger of being infected by them; therefore get thee out, (Heb.) vade tibi, get thee gone with all speed, escape for thy life, look not behind thee. By this precept he was tried whether he could trust God farther than he saw him, for he must leave his own country to go to a land that God would shew him; he doth not say, 'tis a land that I will give thee nor doth he tell him what land it was, or what kind of land; but he must follow God with an implicit faith, and take God's word for it in the general, though he had no particular securities given him, that he should be no loser by leaving his country to follow God.