וַתְּהִי֩ חֲרָדָ֨ה בַמַּחֲנֶ֤ה בַשָּׂדֶה֙ וּבְכָל־הָעָ֔ם הַמַּצָּב֙ וְהַמַּשְׁחִ֔ית חָרְד֖וּ גַּם־הֵ֑מָּה וַתִּרְגַּ֣ז הָאָ֔רֶץ וַתְּהִ֖י לְחֶרְדַּ֥ת אֱלֹהִֽים׃
And there was a trembling in the camp in the field, and among all the people; the garrison, and the spoilers, they also trembled; and the earth quaked; so it grew into a terror from God.
Read kabbalistic (mystical) interpretation of I Samuel 14:15: and classical mystical sources.