Yes. God has definite rights which no man is justified in ignoring. Moreover God definitely commands you to adore and serve Him. “Thou shalt love the Lord thy God . . . this is the first and greatest commandment.” A man with no religion, who never worships God, never says a prayer to Him, is far from fulfilling this commandment of love. It is not enough to admit off-hand that God exists, and then ignore His definite claims.
Necessity of religion, Question 58 from Radio Replies Volume I Copyright © 1938 (by Rev. Dr. Leslie Rumble, M.S.C. and Rev. Charles Mortimer Carty).