Abram was very rich - The property of these patriarchal times did not consist in flocks only, but also in silver and gold; and in all these respects Abram was דבד מאד cabed meod, exceeding rich. Josephus says that a part of this property was acquired by teaching the Egyptians arts and sciences. Thus did God fulfill his promises to him, by protecting and giving him a great profusion of temporal blessings, which were to him signs and pledges of spiritual things.

And Abram was very rich,.... He was rich in spiritual things, in faith, and in all other graces, and was an heir of the kingdom of heaven; and in temporal things, as it sometimes is the lot of good men to be, though but rarely, at least to be exceeding rich, as Abram was; or "very heavy" (r), as the word signifies, he was loaded with wealth and riches, and sometimes an abundance of riches are a burden to a man, and, instead of making him more easy, create him more trouble; and, as we may observe presently, were the occasion of much trouble to Abram and Lot. Abram's riches lay
in cattle, in silver, and in gold; cattle are mentioned first, as being the principal part of the riches of men in those days, such as sheep and oxen, he and she asses and camels, see Genesis 12:16 and besides these he had great quantities of silver and gold: the Jews say (s) he coined money in his own name, and that his coin had on one side an old man and an old woman, and on the other side a young man and a young woman. His riches no doubt were greatly increased by the gifts and presents he received from the king of Egypt during his stay there.
(r) "gravis valde", Montanus, Vatablus, Drusius, Schmidt. (s) Shalshalet Hakabala, fol. 2. 1.

very rich--compared with the pastoral tribes to which Abraham belonged. An Arab sheik is considered rich who has a hundred or two hundred tents, from sixty to a hundred camels, a thousand sheep and goats respectively. And Abram being very rich, must have far exceeded that amount of pastoral property. "Gold and silver" being rare among these peoples, his probably arose from the sale of his produce in Egypt.