WEB
to love Yahweh your God, to obey his voice, and to cling to him; for he is your life, and the length of your days; that you may dwell in the land which Yahweh swore to your fathers, to Abraham, to Isaac, and to Jacob, to give them.
YLT
to love Jehovah thy God, to hearken to His voice, and to cleave to Him (for He is thy life, and the length of thy days), to dwell on the ground which Jehovah hath sworn to thy fathers, to Abraham, to Isaac, and to Jacob, to give to them.’