Numbers 18:19

19“I give to you and to your sons and daughters all the holy contributions that the Israelites present to the Lord as a permanent statute. It is a permanent covenant of salt a before the Lord for you as well as your
offspring/ seed: This term is used literally or metaphorically to refer to plants or grain, sowing or harvest, male reproductive seed, human children or physical descendants, and also to spiritual children or to Christ (G13:16).
offspring.”

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