Matthew 15:14; “Let them alone: they be blind leaders of the blind. And if the blind lead the blind, both shall fall into the ditch.”
Teachings of The Presidents of the Church, Heber J. Grant, ‘Walking in the Path that Leads to Eternal Life,’ Chapter 3, pp. 33-32; “There is but one path of safety for the Latter-day Saints, and that is the path of duty. It is not a testimony only … — it is not actually knowing that the Savior is the Redeemer … that will save you and me; but it is the keeping of the commandments of God, living the life of a Latter-day Saint.” [emp. mine]
John 14:6; “Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.”
If this doesn’t get the attention of those who wonder about Mormonism, nothing will.