וַיִּֽרְאוּ֙ הַפְּלִשְׁתִּ֔ים כִּ֣י אָמְר֔וּ בָּ֥א אֱלֹהִ֖ים אֶל־הַֽמַּחֲנֶ֑ה וַיֹּאמְרוּ֙ א֣וֹי לָ֔נוּ כִּ֣י לֹ֥א הָיְתָ֛ה כָּזֹ֖את אֶתְמ֥וֹל שִׁלְשֹֽׁם׃
And the Philistines were afraid, for they said: ‘God is come into the camp.’ And they said: ‘Woe unto us! for there was not such a thing yesterday and the day before.
Read Kabbalistic (mystical) interpretations of I Samuel 4:7: Zohar and classical Jewish mystical sources, free online.