'Faithfully' in the Bible

and they bring in the heave-offering, and the tithe, and the holy things faithfully; and over them is a leader, Conaniah the Levite, and Shimei his brother is second;

And by his hand are Eden, and Miniamin, and Jeshua, and Shemaiah, Amariah, and Shechaniah, in cities of the priests, faithfully to give to their brethren in courses, as the great so the small,

And the men are working faithfully in the business, and over them are appointed Jahath and Obadiah, the Levites, of the sons of Merari, and Zechariah and Meshullam, of the sons of the Kohathite, to overlook; and of the Levites, every one understanding about instruments of song,

Beloved, faithfully dost thou do whatever thou mayest work to the brethren and to the strangers,