In the choice of the great officers of Solomon's court, no doubt, his wisdom appeared. Several are the same that were in his father's time. A plan was settled by which no part of the country was exhausted to supply his court, though each sent its portion.
SDA Bible Commentary (limited)
Volume 1-7
17. Issachar. The territory of Issachar was south of Naphtali and north of Manasseh, and included the northern part of the plain of Esdraelon (Joshua 19:17-23). This district seems to have been to the north of the district mentioned in 1 Kings 4:12.