Atonement

“Through sacrifices, God extended pardon with acknowledgment of justice: a cost was involved in the process of composition/reconciliation with him. But the ritual system was inadequate to provide even a token cost of composition in cases of rebellious sin, which were all too frequent in Israel’s history. Nevertheless, YHWH forgave repeatedly. So YHWH’s grace was not limited by cultic constraints.”—Cult and Character, page 298

and:

“A פשע, “inexpiable defiant sin,” is cleansed from the sanctuary and banished from the camp on the Day of Atonement, but it is not removed or cleansed from the sinner at any time.”—Cult and Character, page 299

<idle musing>
Take that, cheap grace! Defiant, willful sin = no expiation. Period.

But, the beauty of grace is that it is unending and forgiving—slow to anger and abounding in חסד! (usually translated "steadfast love," or some such). That's why Gane can say that God is not limited by cultic constraints.
</idle musing>