and so that He may establish you today as His people, and He may be your God as He promised you and as He swore to your fathers, to Abraham, Isaac, and Jacob.
It appears by the length of the sentences here, and by the copiousness and pungency of the expressions, that Moses, now that he was drawing near to the close of his discourse, was very warm and zealous, and very desirous to impress what he said upon the minds of this unthinking people.
Commenting on Deuteronomy 29:10-29
That be may establish thee this day for a people unto himself, and that he may be unto thee a God,.... Which contains the sum and substance of the covenant; see Jer 32:38, as he hath said unto thee, and as he had sworn unto thy fathers, to Abraham, to Isaac, and to Jacob; Deu 26:17.
Deu 29:13 “That He may set thee up (exalt thee) to-day into a people for Himself, and that He may be (become) unto thee a God” (vid., Deu 28:9; Deu 27:9; Exo 19:5-6).