John Gills Exposition of the Bible Commentary - Isaiah 37:36
Then the angel of the Lord went forth ,.... From heaven, at the command of the Lord, being one of his ministering spirits, sent forth by him, as for the protection of his people, so for the destruction of their enemies; this was the same night, either in which the Assyrian army sat down before Jerusalem, as say the Jews F24 T. Bab. Sanhedrin: fol. 95. 1. ; or, however the same night in which the message was sent to Hezekiah; see 2 Kings 19:35 , and smote in the camp of the... read more
Matthew Henry's Complete Commentary - Isaiah 37:21-38
We may here observe, 1. That those who receive messages of terror from men with patience, and send messages of faith to God by prayer, may expect messages of grace and peace from God for their comfort, even when they are most cast down. Isaiah sent a long answer to Hezekiah's prayer in God's name, sent it in writing (for it was too long to be sent by word of mouth), and sent it by way of return to his prayer, relation being thereunto had: ?Whereas thou hast prayed to me, know, for thy comfort,... read more