And I will bless them that bless thee, and curse him that curseth thee: and in thee shall all families of the earth be blessed.

Matthew Henry's Concise Commentary

12:1-3 God made choice of Abram, and singled him out from among his fellow-idolaters, that he might reserve a people for himself, among whom his true worship might be maintained till the coming of Christ. From henceforward Abram and his seed are almost the only subject of the history in the Bible. Abram was tried whether he loved God better than all, and whether he could willingly leave all to go with God. His kindred and his father's house were a constant temptation to him, he could not continue among them without danger of being infected by them. Those who leave their sins, and turn to God, will be unspeakable gainers by the change. The command God gave to Abram, is much the same with the gospel call, for natural affection must give way to Divine grace. Sin, and all the occasions of it, must be forsaken; particularly bad company. Here are many great and precious promises. All God's precepts are attended with promises to the obedient. 1. I will make of thee a great nation. When God took Abram from his own people, he promised to make him the head of another people. 2. I will bless thee. Obedient believers shall be sure to inherit the blessing. 3. I will make thy name great. The name of obedient believers shall certainly be made great. 4. Thou shalt be a blessing. Good men are the blessings of their country. 5. I will bless them that bless thee, and curse him that curseth thee. God will take care that none are losers, by any service done for his people. 6. In thee shall all the families of the earth be blessed. Jesus Christ is the great blessing of the world, the greatest that ever the world possessed. All the true blessedness the world is now, or ever shall be possessed of, is owing to Abram and his posterity. Through them we have a Bible, a Saviour, and a gospel. They are the stock on which the Christian church is grafted.