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.
KJV
That he may establish thee to day for a people unto himself, and [that] he may be unto thee a God, as he hath said unto thee, and as he hath sworn unto thy fathers, to Abraham, to Isaac, and to Jacob.
ASV
that he may establish thee this day unto himself for a people, and that he may be unto thee a God, as he spake unto thee, and as he sware unto thy fathers, to Abraham, to Isaac, and to Jacob.