Comentario sobre Deuteronómio 7:11

היום לעשותם [WHICH I COMMANDED THEE] TO-DAY TO DO THEM — to do them to-day, but only in the time to come — in the future world — to receive the reward for them (Eruvin 22a).

ושמרת, as I have explained on verse 9; G’d describes here the reason for otherwise perplexing sounding statements.

ושמרת את המצוה, “You shall observe the commandment, etc;” In order that you will not belong to the group of people classified as those who hate Him and who will perish, it is incumbent upon you to keep the commandments, all types of them, Belong to the group of people described as those who love Him, the ones who receive favourable mention! Ibn Ezra writes that the reason why Moses at this point repeated the previous call to observe the commandments, is to compare G’d’s keeping His promises to the patriarchs by redeeming their offspring; hence you should keep your part of the bargain by keeping His commandments.