Reference for Psalms 21:8

כִּֽי־הַ֭מֶּלֶךְ בֹּטֵ֣חַ בַּיהוָ֑ה וּבְחֶ֥סֶד עֶ֝לְי֗וֹן בַּל־יִמּֽוֹט׃

For the king trusteth in the LORD, yea, in the mercy of the Most High; he shall not be moved.

מחברת מנחם