II Samuel 23:39 Kabbalah

אֽוּרִיָּה֙ הַֽחִתִּ֔י כֹּ֖ל שְׁלֹשִׁ֥ים וְשִׁבְעָֽה׃ (פ)

Uriah the Hittite. Thirty and seven in all.

Read kabbalistic (mystical) interpretation of II Samuel 23:39: and classical mystical sources.