Charles Spurgeon Commentary Amos 6:8

"The Lord Jehovah hath sworn by himself, saith Jehovah, the God of hosts: I abhor the excellency of Jacob, and hate his palaces; therefore will I deliver up the city with all that is therein." — Amos 6:8 (ASV)

The next chapter shows that even when God was very angry with the wicked, there was still wonderful power in prayer.