King James Version (KJV)
They know not, neither will they understand; they walk on in darkness: all the foundations of the earth are out of course.
Modern English
They have neither knowledge nor understanding, they walk about in darkness; all the foundations of the earth are shaken.
Hebrew
לֹ֤א יָֽדְעוּ֙ ׀ וְלֹ֬א יָבִ֗ינוּ בַּחֲשֵׁכָ֥ה יִתְהַלָּ֑כוּ יִ֝מּ֗וֹטוּ כָּל מֽוֹסְדֵי אָֽרֶץ׃
loʾ yadʿv ׀ vloʾ yabiynv baḥashekah yithalakv yimvoṭv kal mvosdey ʾareṣ
כָּלkolevery / all