"How much faith are we prepared to place in this alien religion?"

That is a wise saying, even if it borrows the doctrine of election from an alien religion.

Some abduction-induced theophanies have included visions or insight into alien religions.

References to both human and alien religion is often subtle and brief, but can also form the main theme of an episode.

The shared misfortune of an alien religion, a fatherless family, and a peculiar name.

The Mormons have often been assailed as an alien religion that is trying to lure Russians away from their native faith.

Christine read the words uncritically, as though they were the gospel of an alien religion.

Islam is not an alien religion but a part of American life.

Perhaps all we are here witnessing is a picturesque way of making a scornful reference to alien religion.

You said they were opposed to alien religions.