There is no such promise in the Church.. The promises we have are received by faith in Jesus. Faith is believing that He is who He said He is and has done what He said He has done and will do all He said he will do whether you feel like He has or not.. Feelings are not a sign of Christian faith. James told us what those signs are that we can see them in ourselves and other may also see them in us:
Not to be a respecter of persons (James 2:3), but show love to the poor (James 2:6), understand your guilt before a Holy God (James 2:10), don't commit adultery, or kill (James 2:11), Show mercy to all, cloth the naked and feed the hungry (James 2:13,16)..
God never lied in this whole process. It was Smith who was the liar.. There were no plates hidden on the hillside. There was no angel to give a message of his people.. The work of Jesus was finished in the cross and so announced by Him. The Father, one with the Son, agreed that and the veil of the Temple was torn in half allowing all who will come access to God in His Glory.. IHS jim