'Apostasy' in the Bible

Your wickedness will be punished, and you will be corrected due to your acts of apostasy. Know and see that it's evil and bitter for you to forsake the LORD your God, but the fear of me is not in you," declares the Lord GOD of the Heavenly Armies.

Why has this people turned away? Why does Jerusalem continue in apostasy? They hold on to deceit and refuse to repent.

"I will correct their apostasy, loving them freely, since my anger will have turned away from them.