Nahum 1:1

The burden — When the prophets were sent to denounce judgments against a nation or city, the word was usually called the burden of that nation or city. The vision — As prophets were of old called seers, 1 Samuel 9:9, so their prophesies were called visions. Nahum — His name speaks a comforter, but it is God's people to whom he gives notice of the destruction of their oppressors.