'Scrupulously' in the Bible

Associate with these men and purify yourself with them, and pay their expenses so that they can shave their heads. Then everybody will know that there is no truth in these stories about you, but that in your own actions you yourself scrupulously obey the Law.

although he is a Gentile by birth, if he scrupulously obeys the Law, shall he not sit in judgement upon you who, possessing, as you do, a written Law and circumcision, are yet a Law-breaker?

You scrupulously observe days and months, special seasons, and years.

Do not be drawn aside by all sorts of strange teaching; for it is well to have the heart made stedfast through God's grace, and not by special kinds of food, from which those who scrupulously attend to them have derived no benefit.

If a man thinks that he is scrupulously religious, although he is not curbing his tongue but is deceiving himself, his religious service is worthless.