'Religion' in the Bible

but had certain questions against him about their own religion, and about one Jesus, who was dead, whom Paul affirmed to be alive.

having known me from the first, if they are willing to testify, that after the strictest sect of our religion I lived a Pharisee.

For you have heard of my way of living in time past in the Jews' religion, how that beyond measure I persecuted the assembly of God, and ravaged it.

I advanced in the Jews' religion beyond many of my own age among my countrymen, being more exceedingly zealous for the traditions of my fathers.

If anyone among you thinks himself to be religious while he doesn't bridle his tongue, but deceives his heart, this man's religion is worthless.

Pure religion and undefiled before our God and Father is this: to visit the fatherless and widows in their affliction, and to keep oneself unstained by the world.