The Lord knew that although Jeremiah lived in the southern kingdom of Judah, the prophet knew what Israel was doing in the North, following idols.
Nevertheless, the Lord still wanted Israel,
“The LORD said also to me in the days of Josiah the king: ‘Have you seen what backsliding Israel has done? She has gone up on every high mountain and under every green tree, and there played the harlot. And I said, after she had done all these things, ‘Return to Me.’ But she did not return. And her treacherous sister Judah saw it” (Jeremiah 3:6-7).
Israel acted like a harlot, turning away from God and seeking the false gods of the nations, and although that grieved Him, He still called out to Israel to return.
Judah, like Jeremiah, saw all this, but what did Judah do about her own failings? She increased them!
What do you do when you see someone sin and suffer for it?