וְעַל֙ שִׁבְטֵ֣י יִשְׂרָאֵ֔ל לָרֽאוּבֵנִ֣י נָגִ֔יד אֱלִיעֶ֖זֶר בֶּן־זִכְרִ֑י (ס) לַשִּׁ֨מְעוֹנִ֔י שְׁפַטְיָ֖הוּ בֶּֽן־מַעֲכָֽה׃ (ס)
Furthermore over the tribes of Israel: of the Reubenites was Eliezer the son of Zichri the ruler; of the Simeonites, Shephatiah the son of Maacah;
Rashi
And David assembled all the leaders of Israel These are the leaders, the leaders of the tribes, as it is written (above 27:16): “And over the tribes of Israel, the leader of the Reubenites was...”
Rashi
And the leaders of the fathers’ [houses], etc., gave willingly those about whom it is written above (27:16): “And over the tribes of Israel,” and so it is written above (verse 1): “And the Children of Israel to their number: the heads of the fathers’ [houses], etc.”