Genesis 15:8-10

Revised Standard Version Catholic Edition

⁸ But he said, “O Lord God, how am I to know that I shall possess it?” ⁹ He said to him, “Bring me a heifer three years old, a she-goat three years old, a ram three years old, a turtledove, and a young pigeon.” ¹⁰ And he brought him all these, cut them in two, and laid each half over against the other; but he did not cut the birds in two.