Contradiction with 2 Kings 19:35
Contradicts by stating that a single angel, not Hezekiah's and Isaiah's prayers, was responsible for the defeat of the Assyrians.
2 Kings 19:35: And it came to pass that night, that the angel of the LORD went out, and smote in the camp of the Assyrians an hundred fourscore and five thousand: and when they arose early in the morning, behold, they [were] all dead corpses.
Contradiction with Isaiah 37:36
Similar to 2 Kings 19:35, it attributes the defeat of the Assyrians to an angel, not directly to prayer.
Isaiah 37:36: Then the angel of the LORD went forth, and smote in the camp of the Assyrians a hundred and fourscore and five thousand: and when they arose early in the morning, behold, they [were] all dead corpses.