In the same vision, God in speaking to him also says, “I am God that brought thee out of the region of the Chaldees, to give thee this land to inherit it.” And when Abram asked whereby he might know that he should inherit it, God said to him, “Take me an heifer of three years old, and a she-goat of three years old, and a ram of three years old, and a turtle-dove, and a pigeon. And he took unto him all these, and divided them in the midst, and laid each piece
one against another; but the birds divided he not. And the fowls came down,” as it is written, “on the carcasses, and Abram sat down by them. But about the going down of the sun, great fear fell upon Abram; and, lo, an horror of great darkness fell upon him. And He said unto Abram, Know of a surety that thy seed shall be a stranger in a land not theirs, and they shall reduce them to servitude and shall afflict them four hundred years: but the nation whom they shall serve will I judge; and afterward shall they come out hither with great substance. And thou shalt go to thy fathers in peace; kept in a good old age. But in the fourth generation they shall come hither again: for the iniquity of the Amorites is not yet full. And when the sun was setting, there was a flame, and a smoking furnace, and lamps of fire, that passed through between those pieces. In that day the Lord made a covenant with Abram, saying, Unto thy seed will I give this land, from the river of Egypt unto the great river Euphrates: the Kenites, and the Kenizzites, and the Kadmonites, and the Hittites, and the Perizzites, and the Rephaims, and the Amorites, and the Canaanites, and the Hivites, and the Girgashites, and the Jebusites.”
All these things were said and done in a vision from God; but it would take long, and would exceed the scope of this work, to treat of them exactly in detail. It is enough that we should know that, after it was said Abram believed in God, and it was counted to him for righteousness, he did not fail in faith in saying, “Lord God, whereby shall I know that I shall inherit it?” for the inheritance of that land was promised to him. Now he does not say, How shall I know, as if he did not yet believe; but he says, “Whereby shall I know,” meaning that some sign might be given by which he might know the manner of those things which he had believed, just as it is not for lack of faith the Virgin Mary says, “How shall this be, seeing I know not a man?” for she inquired as to the way in which that should take place which she was certain would come to pass. And when she asked this, she was told, “The Holy Ghost shall come upon thee, and the power of the Highest shall overshadow thee.” Here also, in fine, a symbol was given, consisting of three animals, a heifer, a she-goat, and a ram, and two birds, a turtle-dove and pigeon, that he might know that the things which he had not doubted should come to pass were to happen in accordance with this symbol. Whether, therefore, the heifer was a sign that the people should be put under the law, the she-goat that the same people was to become sinful, the ram that they should reign (and these animals are said to be of three years old for this reason, that there are three remarkable divisions of time, from Adam to Noah, and from him to Abraham, and from him to David, who, on the rejection of Saul, was first established by the will of the Lord in the kingdom of the Israelite nation: in this third division, which extends from Abraham to David, that people grew up as if passing through the third age of life), or whether they had some other more suitable meaning, still I have no doubt whatever that spiritual things were prefigured by them as