Albert Barnes' Notes on the Whole Bible - 2 Kings 21:16
Compare Jeremiah 2:30; Hebrews 11:37; Isaiah 57:1-4. According to tradition, Isaiah was among the first to perish. More than a century afterward, the final judgment upon Jerusalem was felt to be in an special way the punishment of Manasseh’s bloody persecution of God’s people (marginal reference). read more
The Pulpit Commentary - 2 Kings 21:16
Moreover Manasseh shed innocent blood very much. We must not understand this of his own offerings to Moloch, for these have been already put on record against him (verse 6), and this is something additional (note the strong expression, וְגַם ), nor even of the multitudinous sacrifices of the same kind which were the result of his influence on the people. Some culminating horror is required, something not touched upon before, and something specially attaching to the monarch himself. These... read more