Deuteronomy 33:5

So the Lord became King in Jeshurun when the leaders of the people gathered, when the tribes of Israel came together.

Note Jeshurun means the upright one, a term of endearment for Israel; also in verse 26.

BSB · Berean Standard Bible
And he was king in Jeshurun, when the heads of the people and the tribes of Israel were gathered together.
KJV · King James Version
He was king in Jeshurun, when the heads of the people were gathered, all the tribes of Israel together.
WEB · World English Bible
And he was king in Jeshurun, When the heads of the people were gathered, All the tribes of Israel together.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

king
Genesis 36:31; Exodus 18:16, 19; Numbers 16:13–15; Judges 8:22; Judges 9:2; Judges 17:6
Jeshurun
Deuteronomy 32:15