'Religion' in the Bible

but they simply had some points of disagreement with him about their own religion and about a dead man, Jesus, whom Paul asserted to be alive.

since they have known about me for a long time, if they are willing to testify, that I lived as a Pharisee according to the strictest sect of our religion.

These are matters which have, to be sure, the appearance of wisdom in self-made religion and self-abasement and severe treatment of the body, but are of no value against fleshly indulgence.

If anyone thinks himself to be religious, and yet does not bridle his tongue but deceives his own heart, this man’s religion is worthless.

Pure and undefiled religion in the sight of our God and Father is this: to visit orphans and widows in their distress, and to keep oneself unstained by the world.