1 Chronicles 26:32

And his brethren, men of valour, were two thousand 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.

2 Chronicles 19:11

Behold, Amariah, the high priest, who shall be over you in all matters of the LORD; and Zebadiah, the son of Ishmael, prince of the house of Judah, for all the king's matters; and the Levites who shall be teachers before you. Take courage and do, for the LORD shall be with the good.

1 Chronicles 12:37

And of the other side of the Jordan, of those of Reuben and those of Gad and of the half tribe of Manasseh, with all manner of instruments of war for the battle, one hundred and twenty thousand.

1 Chronicles 15:12

and said unto them, Ye are the chief of the fathers among the Levites; sanctify yourselves and your brethren and bring up the ark of the LORD God of Israel unto the place that I have prepared for it,

1 Chronicles 23:24

These are the sons of Levi after the houses of their fathers, even the chief of the fathers, as they were counted by number of names by their polls, that did work in the ministry of the house of the LORD, from the age of twenty years and upward.

1 Chronicles 24:31

These, likewise, cast lots over against their brethren, the sons of Aaron, in the presence of David, the king, and Zadok, and Ahimelech, and the chief of the fathers of the priests and Levites, even the principal fathers over against their younger brethren.

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 unto Shemaiah, his son, were sons born, that ruled throughout the house of their fathers, for they were mighty men of valour.

Chief fathers

1 Chronicles 15:12
and said unto them, Ye are the chief of the fathers among the Levites; sanctify yourselves and your brethren and bring up the ark of the LORD God of Israel unto the place that I have prepared for it,
1 Chronicles 23:24
These are the sons of Levi after the houses of their fathers, even the chief of the fathers, as they were counted by number of names by their polls, that did work in the ministry of the house of the LORD, from the age of twenty years and upward.
1 Chronicles 24:31
These, likewise, cast lots over against their brethren, the sons of Aaron, in the presence of David, the king, and Zadok, and Ahimelech, and the chief of the fathers of the priests and Levites, even the principal fathers over against their younger brethren.

Reubenites

1 Chronicles 12:37
And of the other side of the Jordan, of those of Reuben and those of Gad and of the half tribe of Manasseh, with all manner of instruments of war for the battle, one hundred and twenty thousand.