עֲרֹ֣ב עַבְדְּךָ֣ לְט֑וֹב אַֽל־יַעַשְׁקֻ֥נִי זֵדִֽים׃
Be surety for Thy servant for good; Let not the proud oppress me.
Rashi on Psalms
Be surety Heb. ערב, garantis in French, to vouch for. Be a guarantor for me against the evil (i.e., be a guarantor that I keep Your precepts).