Matthew Poole and continuators on Deuteronomy 33:18

18 And of Zebulun he said, Rejoyce Zebulun, in thy going out , and Issachar in thy tents .

Thou shalt prosper and have cause of rejoycing.

Either 1. To war as this phrase is oft used, as Gen. 14. 18. which was in part verified, Iudg. 5. 18. or 2. To Sea, in way of Traffick, because their portion lay near the Sea. Or both may be joyned, and in both respects his course is opposite to that of Issachar, who was a lover of peace and pasturage. See Gen. 49. 14, 15.

Who is here joyned with Zebulun, both because they brethren by Father and Mother too, and because their possessions lay near together.

(i. e.) Thou shalt give thy self to the management of Land and Cattle, living quietly in thy own possessions, disliking the troubles of war and of merchandise. So the phrase is used, Gen[illegible: 1+ letters] 27. Ios. 22. 4. Iudg. 5. 24. and 7. 8.