I pray that you may see the futility of praying to Saints who can do nothing for you. Christ is the only mediator.

The Catholic Answers

By your very prayer you are attempting to mediate between God and myself on my behalf. I do not criticize the principle of praying for others. I believe in that. But I do criticize your praying for me in violation of your own principles. If the Saints cannot be mediators by praying for me, nor can you. Your prayers would be futile; they could do nothing for me; and you would be wasting your time.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty