Objections To The Gospel
#9 "You keep on saying that we are to trust in Christ alone and what He did on the cross for salvation, what's wrong with trusting in both Christ and ourselves and what we could do or trusting in Christ plus someone else for salvation?"
Answer:
Just as "No one can serve two masters; for either he will hate the one and love the other, or else he will be loyal to the one and despise the other" (see Matthew 6:24) so no one can trust in two Saviors equally without trusting one more than the other.
Plus, to trust in two Saviors, when there is only one Savior appointed by God, is giving glory to one whom glory should not be attributed. It is idolatry.
Moreover, trusting in two Saviors, when there is only one Savior appointed by God, is dishonoring and failing to recognize the full glory of the Lord Jesus as Savior.
In order to be saved, God commands all sinners to trust the Savior alone, the Lord Jesus Christ. Not the Savior plus what self is and what self did, not the Savior plus someone else, no He commands "Believe/trust in the Lord Jesus Christ and you will be saved." (Acts 16:31).