I Chronicles 12:35 Kabbalah

וּמִנַּפְתָּלִ֖י שָׂרִ֣ים אָ֑לֶף וְעִמָּהֶם֙ בְּצִנָּ֣ה וַחֲנִ֔ית שְׁלֹשִׁ֥ים וְשִׁבְעָ֖ה אָֽלֶף׃ (ס)

And of Naphtali a thousand captains, and with them with shield and spear thirty and seven thousand.

Read kabbalistic (mystical) interpretation of I Chronicles 12:35: and classical mystical sources.