Under the First Amendment to the United States Constitution, both parents have a right to practice religion or not practice religion as they see fit. A judge is not supposed to make value judgments about whether a child is better off with or without religious training or about which religion is better. If a child has been brought up with particular religious beliefs and religious activities are important to the child, a court might favor promoting continuity in the child’s life, but the court should not favor religion per se.
In some cases, a parent’s unusual or non-mainstream religious activities may become an issue. Normally, a court should not consider a parent’s unusual religious practices in deciding custody or visitation unless specific harm to the child is shown. If, because of a parent’s religious beliefs, a parent has not given the child needed medical care or has tried to convince the child that the other parent is evil and should not be associated with, that could be a basis for placing custody with the parent whose religious conduct does not harm the child.