Genesis 15:10-17
Chapter 15
7 Then He said to him, “I am the Lord, who brought you out of Ur of the Chaldeans, to give you this land to inherit it.”
8 And he said, “Lord God, how shall I know that I will inherit it?”
9 So He said to him, “Bring Me a three-year-old heifer, a three-year-old female goat, a three-year-old ram, a turtledove, and a young pigeon.” 10 Then he brought all these to Him and cut them in two, down the middle, and placed each piece opposite the other; but he did not cut the birds in two.