Is not the whole land, &c. Figure of speech Erotesis.
thou wilt take. Figure of speech Complex Ellipsis. See App-6.
Related Commentaries of Genesis 13:9
Genesis 13:9
9 Is not the whole land before thee? separate thyself, I pray thee, from me: if thou wilt take the left hand, then I will go to the right; or if thou depart to the right hand, then I will go to the left.