Jeremiah 3:10

10 And even in all this her treacherous sister Judah hath not turned back unto Me with all her heart, but with falsehood, an affirmation of Jehovah.'

Jeremiah 3:10 Meaning and Commentary

Jeremiah 3:10

And yet for all this
Though the two tribes saw the lightness and filthiness of the sin Israel was guilty of, and how the land was defiled with it, the stupidity of it, and the punishment inflicted on account of it: her treacherous sister Judah hath not turned unto me with her whole
heart, but feignedly, saith the Lord;
there was a show of reformation in Josiah's time, but it was but a show; there was no true, hearty cordial repentance for the sin of idolatry, only a feigned one; there was an outward removal of it, and reformation from it, but inwardly the desires of the heart were to it; the good king, with some few others, were hearty in it, but the greater part played the hypocrite; the following reigns proved the truth of this.

Jeremiah 3:10 In-Context

8 And I see when (for all the causes whereby backsliding Israel committed adultery) I have sent her away, and I give the bill of her divorce unto her, that treacherous Judah her sister hath not feared, and goeth and committeth fornication -- she also.
9 And it hath come to pass, from the vileness of her fornication, that the land is defiled, and she committeth fornication with stone and with wood.
10 And even in all this her treacherous sister Judah hath not turned back unto Me with all her heart, but with falsehood, an affirmation of Jehovah.'
11 And Jehovah saith unto me: `Justified herself hath backsliding Israel, More than treacherous Judah.
12 Go, and thou hast proclaimed these words toward the north, and hast said, Turn back, O backsliding Israel, An affirmation of Jehovah! I cause not Mine anger to fall upon you, For I [am] kind, an affirmation of Jehovah, I watch not to the age.
Young's Literal Translation is in the public domain.