|Matthew Henry's Concise Commentary|
12:4,5 Abram believed that the blessing of the Almighty would make up for all he could lose or leave behind, supply all his wants, and answer and exceed all his desires; and he knew that nothing but misery would follow disobedience. Such believers, being justified by faith in Christ, have peace with God. They hold on their way to Canaan. They are not discouraged by the difficulties in their way, nor drawn aside by the delights they meet with. Those who set out for heaven must persevere to the end. What we undertake, in obedience to God's command, and in humble attendance on his providence, will certainly succeed, and end with comfort at last. Canaan was not, as other lands, a mere outward possession, but a type of heaven, and in this respect the patriarchs so earnestly prized it.
Verse 4. - So (literally, and) Abram departed - from Ur of the Chaldees, or from Haran (vide supra) - as the Lord had spoken unto him; and Lot went with him. Lot's name being repeated here because of his connection with the ensuing narrative. And Abram was seventy and five years old - literally, a son of five years and seventy years (cf. Genesis 7:6) - when he departed - literally, in his going forth upon the second stage of his journey - from Haran.
Gill's Exposition of the Entire Bible
So Abram departed, as the Lord had spoken unto him,.... Or, "when the Lord had spoken to him", as Cocceius renders the words; when he had called him a second time, even when in Haran, immediately after the death of his father Terah; as soon as ever the words were spoken to him before recorded, he immediately prepared and got all things ready for his journey, and departed from Haran, as he had done before from Ur of the Chaldees:
and Lot went with him; of his own accord, and he only, besides his wife Sarai and his servants, for Terah was dead, and Nahor and his family stayed behind.
And Abram was seventy five years old when he departed out of Haran; by which it appears, as has been observed, that he was not Terah's eldest son, born when he was seventy years of age, Genesis 11:26 for then he must have been at this time, one hundred and thirty five years old, since his father, who was just now dead, lived to be two hundred and five years old, Genesis 11:32 so that Abram must be born in the one hundred and thirtieth year of Terah: how many years before this time he was converted from idolatry cannot be said with any certainty; various are the accounts given by the Jewish writers; some say that at three years of age he knew his Creator; others at eight; others thirteen; others more probably when forty; others fifty one; others fifty two; and others say he was sixty years old when he began publicly to assert the unity of God in heaven (z): however, all agree it was before the age here mentioned, as it may well be concluded.
(z) Vid. Pirke Eliezer, c. 26. Maimon. Hilchot obede cocabim, c. 1. sect. 3. & Comment. in ib. Juchasin, fol. 9. 2. Shalshelet, fol. 2. 2.
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