Some American churches tell their congregations that if they believe (and give) they will not only go to heaven, but they will be rich here on earth. These are the so-called “success prophets”, preying on the poor.
I suppose one could argue that the “pastors” involved are at least trying to offer some hope, but in the process they are enriching themselves and knowingly telling a lie. As Epicurus said, “To fear God in expectation of material returns is to act upon groundless expectations and false opinions”.