אֵ֥לֶּה מִבְּנֵי־גָ֖ד רָאשֵׁ֣י הַצָּבָ֑א אֶחָ֤ד לְמֵאָה֙ הַקָּטָ֔ן וְהַגָּד֖וֹל לְאָֽלֶף׃
These of the sons of Gad were captains of the host; he that was least was equal to a hundred, and the greatest to a thousand.
Read kabbalistic (mystical) interpretation of I Chronicles 12:15: and classical mystical sources.