'Committing' in the Bible

O Lord of hosts,How blessed and greatly favored is the man who trusts in You [believing in You, relying on You, and committing himself to You with confident hope and expectation].

Protect my life (soul), for I am godly and faithful;O You my God, save Your servant, who trusts in You [believing in You and relying on You, confidently committing everything to You].