וְאֵ֥שׁ יָצְאָ֖ה מֵאֵ֣ת יְהוָ֑ה וַתֹּ֗אכַל אֵ֣ת הַחֲמִשִּׁ֤ים וּמָאתַ֙יִם֙ אִ֔ישׁ מַקְרִיבֵ֖י הַקְּטֹֽרֶת׃ (פ)
And fire came forth from the LORD, and devoured the two hundred and fifty men that offered the incense.
Read kabbalistic (mystical) interpretation of Numbers 16:35: and classical mystical sources.