John Calvin on Numbers 15:41

41 I am the Lord your God. Having at the end of the last verse commanded them to be holy unto their God, he now confirms this command by a reason, viz., that it was for this end that God redeemed them, that he might be their God, i.e., that He might be solemnly honored. He asserts God’s right, then, as founded upon the blessing of their deliverance, which would have been misplaced unless they devoted themselves to His service. The repetition at the conclusion is intended for confirmation.

deuteronomy 6

REPETITION OF THE SAME COMMAND

deuteronomy 6:6-9

6. And these words, which I command thee this day, shall be in thine heart;

6. Erunt verba haec quae ego praecipio tibi hodie, in corde tuo.

7. And thou shalt teach them diligently unto thy children, and shalt talk of them when thou sittest in thine house, and when thou walkest by the way, and when thou liest down, and when thou risest up.

7. Et iterabis (vel, acues) ea filiis tuis, et disseres de ipsis sedens domi tuae, iter faciens, jacens in lecto, et surgens.

8. And thou shalt bind them for a sign upon thine hand, and they shall be as frontlets between thine eyes.

8. Et ligabis ea in signum in manu tua: et erunt in frontalia inter oculos tuos.

9. And thou shalt write them upon the posts of thy house, and on thy gates

9. Scribes quoque ea in postibus domus tuae, et in portis tuis.