Cross reference
Exodus 12:24
24 `And ye have observed this thing, for a statute to thee, and to thy sons -- unto the age;
Exodus 12:14
14 `And this day hath become to you a memorial, and ye have kept it a feast to Jehovah to your generations; -- a statute age-during; ye keep it a feast.
Genesis 17:8-10
8 and I have given to thee, and to thy seed after thee, the land of thy sojournings, the whole land of Canaan, for a possession age-during, and I have become their God.'
9 And God saith unto Abraham, `And thou dost keep My covenant, thou and thy seed after thee, to their generations;
10 this `is' My covenant which ye keep between Me and you, and thy seed after thee: Every male of you `is' to be circumcised;