Leviticus 16:7

And he shall take the two goats. — Having presented his own sin-offering, the high priest, accompanied by the two chief priests, now came to the north of the altar. Here the one of his companions who was next in rank to the pontiff placed himself at his right side, whilst the other, who held the office of chief of the principal household (see 1 Chronicles 24:6), stood at his left. It was here that the two goats were presented with their faces to the west, where the Holy of Holies was, and where the Divine majesty was especially revealed.