Covenant As Scar Tissue

I will bore my secular readers with a religious metaphor I just found in The Torah: A Modern Commentary. It explains the nature of God’s covenant with the Jewish people:

Doctors say that scar tissue is much stronger than tissue that has never suffered trauma, and the same is true of covenants. After the sin of the Golden Calf in Exodus 32, God, Moses, and the people Israel are reconciled. The covenant that was broken through idolatry is mended and emerges even stronger…

I have a soft spot for metaphors like this one. Don’t know why.