Exodus 34:16-18

American Standard Version

¹⁶ and thou take of their daughters unto thy sons, and their daughters play the harlot after their gods, and make thy sons play the harlot after their gods. ¹⁷ Thou shalt make thee no molten gods.

¹⁸ The feast of unleavened bread shalt thou keep. Seven days thou shalt eat unleavened bread, as I commanded thee, at the time appointed in the month Abib; for in the month Abib thou camest out from Egypt.