'Ordinance' in the Bible

‘Now this day will be a memorial to you, and you shall celebrate it as a feast to the Lord; throughout your generations you are to celebrate it as a permanent ordinance.

You shall also observe the Feast of Unleavened Bread, for on this very day I brought your hosts out of the land of Egypt; therefore you shall observe this day throughout your generations as a permanent ordinance.

And you shall observe this event as an ordinance for you and your children forever.

The Lord said to Moses and Aaron, “This is the ordinance of the Passover: no foreigner is to eat of it;

Therefore, you shall keep this ordinance at its appointed time from year to year.