You are a trust, a help, and a support to all who enter the world — but to me (David) more than to all. He made me distinct and I made Him distinct. He made me distinct — (Devarim 26:18) "And the L–rd made you distinct unto Him this day) to be unto Him His chosen people.") And I, likewise, made Him distinct — (Ibid. 17) "You have made the L–rd distinct this day to be unto you a G–d."
Addressed Directly to God You Are a Trust
Mekhilta Tractate Shirah 3:3