Reference for Psalms 61:8

יֵשֵׁ֣ב ע֭וֹלָם לִפְנֵ֣י אֱלֹהִ֑ים חֶ֥סֶד וֶ֝אֱמֶ֗ת מַ֣ן יִנְצְרֻֽהוּ׃

May he be enthroned before God for ever! Appoint mercy and truth, that they may preserve him.

ספר השרשים