The prophet Moroni describes the only circumstance under which God ceases to do miracles among the people of the Earth.
“…Who shall say that Jesus Christ did not do many mighty miracles? …And if there were miracles wrought then, why has God ceased to be a God of miracles and yet be an unchangeable Being? And behold, I say unto you he changeth not; if so he would cease to be God; and he ceaseth not to be God, and is a God of miracles. And the reason why he ceaseth to do miracles among the children of men is because that they dwindle in unbelief, and depart from the right way, and know not the God in whom they should trust. Behold, I say unto you that whoso believeth in Christ, doubting nothing, whatsoever he shall ask the Father in the name of Christ it shall be granted him; and this promise is unto all, even unto the ends of the earth.” (Mormon 9:18-21)
Questions:
-Do some believe in God but misunderstand who He is (in that they do not trust that He works miracles in our time)?
Messages of the Book of Mormon 