וַיִּקָּבְצ֧וּ כָֽל־יִשְׂרָאֵ֛ל אֶל־דָּוִ֖יד חֶבְר֣וֹנָה לֵאמֹ֑ר הִנֵּ֛ה עַצְמְךָ֥ וּֽבְשָׂרְךָ֖ אֲנָֽחְנוּ׃
Then all Israel gathered themselves to David unto Hebron, saying: ‘Behold, we are thy bone and thy flesh.
Read kabbalistic (mystical) interpretation of I Chronicles 11:1: and classical mystical sources.