Reference for Psalms 11:4

יְהוָ֤ה ׀ בְּֽהֵ֘יכַ֤ל קָדְשׁ֗וֹ יְהוָה֮ בַּשָּׁמַ֪יִם כִּ֫סְא֥וֹ עֵינָ֥יו יֶחֱז֑וּ עַפְעַפָּ֥יו יִ֝בְחֲנ֗וּ בְּנֵ֣י אָדָֽם׃

The LORD is in His holy temple, the LORD, His throne is in heaven; His eyes behold, His eyelids try, the children of men.

ספר השרשים