And Hazael said, Why weepeth my lord?
 &c.] Imagining it was for the death of Benhadad he had predicted, for which he could see no reason; of the title, "my lord", see ( 1 Kings 18:7 ) 
 and he answered, because I know the evil that thou wilt do unto the
 children of Israel;
 which he foresaw by a spirit of prophecy; and Israel being his own people, he sympathized in their calamities before they came: 
 their strong holds wilt thou set on fire;
 which should be taken by him, see ( 2 Kings 10:32 ) 
 and their young men wilt thou slay with the sword;
 in battle: 
 and wilt dash their children;
 against rocks and stones, or stone walls, or upon the ground, floor, or pavement, as was usual in war F7, see ( Psalms 137:9 ) , 
 and rip up their women with child:
 which was the height of barbarity and cruelty. Ben Gersom and Ben Melech interpret this of breaking down the walls of fortified cities, built strong, like hills and mountains; but this is supposed in the first clause.