'Faithfully' in the Bible

Then the king commanded them, “Do this in the fear of the Lord, faithfully and wholeheartedly.

They faithfully brought in the contributions, the tithes, and the sacred (dedicated) things. Conaniah the Levite was in charge of them, and Shimei his brother was second [in authority].

Under his authority were Eden, Miniamin, Jeshua, Shemaiah, Amariah, and Shecaniah in the cities of the priests, to distribute faithfully their portions to their brothers (relatives) by divisions, whether great or small,

The men did the work faithfully with foremen over them to supervise and inspect [their work]: Jahath and Obadiah, the Levites of the sons of Merari, and Zechariah and Meshullam of the sons of the Kohathites, and the Levites, all who were skillful with musical instruments.