Is there Grace in the Old Testament?

Isn't the rule-of-thumb that the God of the Old Testament the God of judgement and the God of the New Testament is the God of forgiveness and grace?

That is the common belief, but only by those who don't read the Old Testament. Take the book of Amos for instance. I just completed it and the book is the study of a God who is Holy and gracious.

Chapters 1-6 are a report card for the nation of Israel, and they get all failing grades. Unrepentant sin and hypocrisy. And then in 7:1 God prepares his judgement. Then an interesting interchange happens between Amos and this Holy, unforgiving God:

Amos: Oh Lord, please forgive
God: I relent, It shall not be

God is inclined to mercy. God is predisposed to forgiveness. God is the God of grace. This is true in the Old Testament, and in the New.

In the Old Testament the God of Judgement and of Grace points to the cross, the place of judgement and grace.

Undone.