Exodus 12
24 Ref `And ye have observed this thing, for a statute to thee, and to thy sons -- unto the age;
25 Ref 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 Ref and it hath come to pass when your sons say unto you, What `is' this service ye have?
27 Ref 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.'