'East to west' in the Bible

"These are the names of the tribes from the northernmost extremity westward along the road from Hethlon to the entrance of Hamath, Hazar-enan (a border of Damascus) northward to the coast of Hamath. The perimeter is to run east-to-west; the tribe of Dan with one portion;

Adjacent to the border of Benjamin running from east to west, Simeon is to retain one portion.

Adjacent to the border of Simeon running from east to west, Issachar is to retain one portion.

Adjacent to the border of Issachar running from east to west, Zebulun is to retain one portion.

Adjacent to the border of Zebulun running from east to west, Gad is to retain one portion.