“A wicked and adulterous generation seeketh after a sign; and there shall no sign be given unto it, but the sign of the prophet Jonas. And he left them, and departed.” – Matthew 16:4
“Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world.” – 1 John 4:1
“Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.” – John 14:6
Please check out the following film by the late Jim Tetlow called “Messages from Heaven”.
You also may want to check out Roman Catholic Mary Idolatry Exposed.