Adam Clarke on Genesis 37:14

Go - see whether it be well with thy brethren - Literally, Go, I beseech thee, and see the peace of thy brethren, and the peace of the flock. Go and see whether they are all in prosperity. See Clarke on Gen 37:4 (note). As Jacob's sons were now gone to feed the flock on the parcel of ground they had bought from the Shechemites, (see Gen 33:19), and where they had committed such a horrible slaughter, their father might feel more solicitous about their welfare, lest the neighboring tribes should rise against them, and revenge the murder of the Shechemites.

As Jacob appears to have been at this time in the vale of Hebron, it is supposed that Shechem was about sixty English miles distant from it, and that Dothan was about eight miles farther. But I must again advertise my readers that all these calculations are very dubious; for we do not even know that the same place is intended, as there are many proofs that different places went by the same names.