(2) Ittai the Gittite.--Comp. note on Judges 15:19. The arrangement of the army in three divisions was common both among the Israelites (Judges 7:16; Judg. 11:43; 1Samuel 11:11) and their enemies (1Samuel 13:17). Comp. also 2Kings 11:5-6; David proposed to take the chief command in person.

Verse 2. - A third part. Armies are usually divided into three divisions: a centre and two wings when drawn up for battle; a van, the main body. and a rearguard when on the march. But the Israelites had no settled rule upon the point, and. when occasion required, Joab divided his army into two parts (2 Samuel 10:9, 10). The reason of the threefold division in this case was that Ittai had brought his clan, or taf, with him, and as these would certainly not have fought under an Israelite leader, nor the Israelites under Ittai, David placed all foreigners under his command, while he gave his own nephews the command of the native troops. He thus avoided all jealousies; and Ittai's men, honoured by being made a distinct portion of the army, would feel their reputation at stake, and would rival the Israelites in valour.

18:1-8 How does David render good for evil! Absalom would have only David smitten; David would have only Absalom spared. This seems to be a resemblance of man's wickedness towards God, and God's mercy to man, of which it is hard to say which is most amazing. Now the Israelites see what it is to take counsel against the Lord and his anointed.And David sent forth a third part of the people under the hand of Joab,.... Very likely that which made the centre of the army, since Joab was the general of the army; though this distribution was made when David thought to have headed the army himself, and so made with respect to that:

and a third part under the hand of Abishai the son of Zeruiah, Joab's brother; who was next to Joab in the army, and fought with him against the Syrians and Ammonites, 2 Samuel 10:10,

and a third part under the hand of Ittai the Gittite; of whom see 2 Samuel 15:19; of these two parts consisted the right and left wings of the army:

and the king said unto the people; the soldiers, and particularly the officers:

I will surely go forth with you myself also; in which he seemed very resolute and peremptory; and this he proposed to do, not merely to animate the soldiers with his presence, and to show that he was willing to hazard his life with them, but chiefly for the sake of Absalom, to preserve his life, if possible.