Exodus 12:25-27

Young's Literal Translation

²⁵ and it hath been, when ye come in unto the land which Jehovah giveth to you, as He hath spoken, that ye have kept this service;

²⁶ and it hath come to pass when your sons say unto you, What [is] this service ye have?

²⁷ that ye have said, A sacrifice of passover it [is] to Jehovah, who passed over the houses of the sons of Israel in Egypt, in His smiting the Egyptians, and our houses He delivered.'