1 Chronicles 26:32

And his brothers, mighty men, were two thousand and seven hundred chief fathers whom King David made rulers over the men of Reuben, of Gad, and the half tribe of Manasseh, for every matter having to do with God and the affairs of the king.

2 Chronicles 19:11

And behold, Amariah the chief priest is over you in all matters of Jehovah. And Zebadiah the son of Ishmael is the ruler of the house of Judah for all the king's matters. Also the Levites shall be officers before you. Take courage and act, and Jehovah shall be with the good.

1 Chronicles 12:37

And on the other side of Jordan, from the Reubenites, and of the Gadites, and from the half tribe of Manasseh, with all of the weapons of war for battle were a hundred and twenty thousand.

1 Chronicles 15:12

And he said to them, You are the heads of the fathers of the Levites. Sanctify yourselves, you and your brothers, so that you may bring up the ark of Jehovah, the God of Israel to the place which I have prepared for it.

1 Chronicles 23:24

These were the sons of Levi after the house of their fathers, the chief of the fathers, as they were counted by number of names by their heads, the ones who did the work for the service of the house of Jehovah, from the age of twenty years and upward.

1 Chronicles 24:31

And they also cast lots along with their brothers, the sons of Aaron, before David the king, and Zadok, and Ahimelech, and the chief of the fathers of the priests and Levites, the head of the fathers, as well as his younger brother.

Treasury of Scripture Knowledge

Summary

And his brethren, men of valour, were two thousand and seven hundred chief fathers, whom king David made rulers over the Reubenites, the Gadites, and the half tribe of Manasseh, for every matter pertaining to God, and affairs of the king.

Men of valour

Reubenites

Bible References

Men of valour

1 Chronicles 26:6
Also sons were born to his son Shemaiah, who ruled for the house of their father, for they were mighty men of valor.

Chief fathers

1 Chronicles 15:12
And he said to them, You are the heads of the fathers of the Levites. Sanctify yourselves, you and your brothers, so that you may bring up the ark of Jehovah, the God of Israel to the place which I have prepared for it.
1 Chronicles 23:24
These were the sons of Levi after the house of their fathers, the chief of the fathers, as they were counted by number of names by their heads, the ones who did the work for the service of the house of Jehovah, from the age of twenty years and upward.
1 Chronicles 24:31
And they also cast lots along with their brothers, the sons of Aaron, before David the king, and Zadok, and Ahimelech, and the chief of the fathers of the priests and Levites, the head of the fathers, as well as his younger brother.

Reubenites

1 Chronicles 12:37
And on the other side of Jordan, from the Reubenites, and of the Gadites, and from the half tribe of Manasseh, with all of the weapons of war for battle were a hundred and twenty thousand.