Genesis 17:13

13both he who is born in your house and he who is bought with your money, shall surely be circumcised. So shall my covenant be in your flesh an everlasting covenant.

Exodus 12:14

14This day shall be afor you a memorial day, and you shall keep it as a feast to the Lord; throughout your generations, as a bstatute forever, you shall keep it as a feast.

Exodus 31:16

16Therefore the people of Israel shall keep the Sabbath, observing the Sabbath throughout their generations, as a covenant forever.

Numbers 18:19

19 cAll the holy contributions that the people of Israel present to the Lord I give to you, and to your sons and daughters with you, as a perpetual due. dIt is a covenant of salt forever before the Lord for you and for your offspring with you.”
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