Exodus 12:25 YLT

²³  'And Jehovah hath passed on to smite the Egyptians, and hath seen the blood on the lintel, and on the two side-posts, and Jehovah hath passed over the opening, and doth not permit the destruction to come into your houses to smite.

²⁴  'And ye have observed this thing, for a statute to thee, and to thy sons -- unto the age;

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.'