Jeremiah 31:1 KJV

At the same time, saith the Lord, will I be the God of all the families of Israel, and they shall be my people.
Jeremiah 31:1, King James Version

In context

1 At the same time, saith the Lord, will I be the God of all the families of Israel, and they shall be my people.

2 Thus saith the Lord, The people which were left of the sword found grace in the wilderness; even Israel, when I went to cause him to rest.