King James Version (KJV) Authorized Version 1611
Read Full Chapter (Jeremiah 3)

Jeremiah 3:20-21 KJV

"Surely as a wife treacherously departeth from her husband, so have ye dealt treacherously with me, O house of Israel, saith the LORD. A voice was heard upon the high places, weeping and supplications of the children of Israel: for they have perverted their way, and they have forgotten the LORD their God."
Jeremiah Chapter 3, Verse 20-21

Jeremiah 3:20-21 in Context (Verses 17–24 KJV)

17
At that time they shall call Jerusalem the throne of the LORD; and all the nations shall be gathered unto it, to the name of the LORD, to Jerusalem: neither shall they walk any more after the imagination of their evil heart.*
18
In those days the house of Judah shall walk with the house of Israel, and they shall come together out of the land of the north to the land that I have given for an inheritance unto your fathers.**
19
But I said, How shall I put thee among the children, and give thee a pleasant land, a goodly heritage of the hosts of nations? and I said, Thou shalt call me, My father; and shalt not turn away from me.***
20
Surely as a wife treacherously departeth from her husband, so have ye dealt treacherously with me, O house of Israel, saith the LORD.*
21
A voice was heard upon the high places, weeping and supplications of the children of Israel: for they have perverted their way, and they have forgotten the LORD their God.
22
Return, ye backsliding children, and I will heal your backslidings. Behold, we come unto thee; for thou art the LORD our God.
23
Truly in vain is salvation hoped for from the hills, and from the multitude of mountains: truly in the LORD our God is the salvation of Israel.
24
For shame hath devoured the labour of our fathers from our youth; their flocks and their herds, their sons and their daughters.