Rashi on Yisro 18:19

English: איעצך ויהי אלהים עמך I WILL GIVE THEE COUNSEL BUT LET GOD BE WITH THEE in considering this counsel. This is really what he said to him: Go and consult with the Almighty as regards the counsel I give you (Mekhilta). היה אתה לעם מול האלהים BE THOU FOR THE PEOPLE TO GOD-WARD — be thou the agent and intermediary between them and the Omnipresent, and be thou the one who enquires of Him regarding the judgments. את הדברים [AND THOU SHALT BRING] THE MATTERS — i. e. the matters of their strife.