ה֧וּא בְנָיָ֛הוּ גִּבּ֥וֹר הַשְּׁלֹשִׁ֖ים וְעַל־הַשְּׁלֹשִׁ֑ים וּמַ֣חֲלֻקְתּ֔וֹ עַמִּיזָבָ֖ד בְּנֽוֹ׃ (ס)
This is that Benaiah, who was the mighty man of the thirty, and over the thirty; and of his course was Ammizabad his son.
Read midrashic interpretation of I Chronicles 27:6: and classical rabbinic exegesis.