(12) Be of good courage, and let us play the men.--Literally, Be strong and let us strengthen ourselves. The same phrase is translated in Chronicles, "Be of good courage and let us behave ourselves valiantly." (Compare 1Samuel 4:9.) Joab felt that the battle was a critical one, and on it depended the welfare and even the safety of "our people" and "the cities of our God." The latter expression is in recognition of the fact that the whole land belonged to God, who allowed the use of it to His people.

The Lord do.--Rather, The Lord will do. Joab's courage rose here to that highest point which is marked by the full trust that whatever may be the result, it will be that which seems best to Infinite wisdom and love.

Verse 12. - Be of good courage, and let us play the men. The Hebrew employs two conjugations of the same verb, literally, be strong, and let us show ourselves strong. And need there was for bravery; for the welfare, as he went on to show, of all Israel, and the honour of Israel's God, were in jeopardy. Finally he adds, The Lord do that which seemeth him good. They are the words not so much of confidence as of determined resolution. Come good or ill, he and Abishai would do their utmost.

10:6-14 They that are at war with the Son of David, not only give the provocation, but begin the war. God has forces to send against those that set his wrath at defiance, Isa 5:19, which will convince them that none ever hardened his heart against God, and prospered. Christ's soldiers should strengthen one another's hands in their spiritual warfare. Let nothing be wanting in us, whatever the success be. When we make conscience of doing our duty, we may, with satisfaction, leave the event with God, assuredly hoping for his salvation in his own way and time.Be of good courage, and let us play the men,.... This Joab said, not only to encourage Abishai and himself, but in the hearing of the rest of the officers of the army, and of many of the people, to hearten them to the battle; who might be somewhat intimidated with the number of their enemies, and the position they were in, being before and behind them; and therefore he thought proper to make such a speech to them to animate them to light:

for our people, and for the cities of our God; that the people of Israel might not be carried captive, and their cities spoiled and plundered; and instead of being cities where the people of God dwelt, and he was worshipped, would, if taken, become the habitations of idolatrous Heathens, and where temples would be erected to idols, and the worship of them; these were the arguments he used to engage them to fight manfully for their country, the liberties and religion of it:

and the Lord do that which seemeth him good: tacitly suggesting that victory was of the Lord, and that it became them to do their part in fighting courageously, and leave the issue to the Lord, on whom alone success depended.