Put yourself in the place of a 6th century BC Israelite. He knows he has offended the creator God by joining in with the new practice of burning incense to baal. The prophet has told him that God will come to punish them. The Babylonians are at the gates of the town and he is about to be captured or worse. The Babylonians have been sent by God to punish them. Yet this Israelite only sees this because he is humble. A Canaanite town however is about to be captured by the Israelites. But the Canaanite isn't humble and so doesn't see it as God sending the Israelites in judgement.
When it says that God did something that we perceive as evil, eg send an army to slaughter men women and children, we may believe this to be evil due to a lack of humility, which prevents us from seeing the situation from God's perspective.
Hence floo's perception of God as evil.