Apocalypse of Abraham 3
1
Then a voice came to me speaking twice: Abraham, Abraham! And I said: Here I am!
2
And He said: Behold, it is I; fear not, for I am Before-the-World and Mighty, the God who created previously, before the light of the age. I am the protector for thee and I am thy helper.
3
Go, take me a young heifer of three years old, and a she-goat of three years old, and a ram of three years old, and a turtledove and a pigeon.
4
And set me a pure sacrifice. And in this sacrifice I will place the ages. And I will make known to thee what is guarded, what is in the spaces of the heavens and the earth.