'Religion' in the Bible

But this I will say openly to you, that I do give worship to the God of our fathers after that Way, which to them is not the true religion: but I have belief in all the things which are in the law and in the books of the prophets:

But had certain questions against him in connection with their religion, and about one Jesus, now dead, who, Paul said, was living.

And they are able to say, if they would give witness, that I was living as a Pharisee, in that division of our religion which is most regular in the keeping of the law.

But we have a desire to give hearing to your opinion: for as to this form of religion, we have knowledge that in all places it is attacked.