Isaiah 66:15

Here the prophet comes more particularly to expound what indignation should be showed towards his enemies. The Lord will come with fire; that is, with terrible judgments, nothing being more terrible and wasting than fire; or with fire in a proper sense, understanding it of the fire with which enemies use to consume places brought under their power. With a whirlwind; with a sudden sweeping judgment that like a whirlwind shall destroy this people. With fury; that is, with fervour; for fury properly so taken is not in God, Isaiah 27:4, but God sometimes executes justice and judgment more smartly and severely. His rebukes: by rebukes he means punishments, for it is said God will execute them with flames of fire. They had contemned the rebukes of his law, now God will rebuke them with fire and sword.