'Faithfully' in the Bible

So they read from the Book of the Law of God, translating and explaining it so that the people understood the reading.

You are righteous concerning all that has come on us,because You have acted faithfully,while we have acted wickedly.

On that day men were appointed over the chambers for the stores, the contributions, the first fruits, and the tithes, to gather into them from the fields of the cities the portions required by the law for the priests and the Levites; for Judah rejoiced over the priests and Levites who served.