Exodus 12:24-25

12:24 You must observe this event as an ordinance for you and for your children forever. 12:25 When you enter the land that the Lord will give to you, just as he said, you must observe this ceremony.

tn The verb used here and at the beginning of v. 24 is שָׁמַר (shamar); it can be translated “watch, keep, protect,” but in this context the point is to “observe” the religious customs and practices set forth in these instructions.