The psalmist declared in Psalm 145: 8 & 9, 'The Lord is gracious and full of compassion, slow to anger and great in mercy. The Lord is good to all, and His tender mercies are over all his works."
I have seen and lived the compassion, love, acceptance and faithfulness of God. He has stayed with me in awful stuff and huge errors and sin. There is NO ONE like Him.
Even in judgement, He repeatedly warns and coaxes us to leave the sin and wrong ways of our lives. When He pronounces judgement, He is open to changing His mind if we (and even nations) repent (see the book of Jonah). When God does judge and punish - bringing the justice required by our sin - He doesn't enjoy it. Regarding his judgement and punishment upon Judah, God states in Micah 1:8: "Therefore I will wail and howl. I will go stripped and naked; I will make a wailing like the jackals and a mourning like the ostriches..."
After Judgement, is a person repents, God is quick to redeem the consequences for good. He sets the repentant person on a new foundation. God will always use your own hard-won lessons to minister to others and make them useful for many.
God is not some mean old codger looking to destroy. He is love and compassion looking to redeem a fallen world, a world He once called "very, very good."