אָ֤וֶן ׀ יַחְשֹׁ֗ב עַֽל־מִשְׁכָּ֫ב֥וֹ יִ֭תְיַצֵּב עַל־דֶּ֣רֶךְ לֹא־ט֑וֹב רָ֝֗ע לֹ֣א יִמְאָֽס׃
He deviseth iniquity upon his bed; He setteth himself in a way that is not good; He abhorreth not evil.
Pirkei DeRabbi Eliezer
Rabbi Simeon said: The Holy One, blessed be He, pointed out the altar with a finger to Abraham our father, and said to him: This is the altar. That was the altar whereon Cain and Abel sacrificed; it was the same altar whereon Noah and his sons sacrificed, as it is said, "And Abraham built the altar there" (Gen. 22:9). "And Abraham built an altar there" is not written here, but "And Abraham built the altar there." That was the altar whereon the first ones (of old) had sacrificed.