'Faithfully' in the Bible

So they sent to Him their disciples together with the Herodians; who said, "Teacher, we know that you are truthful and that you faithfully teach God's truth; and that no fear of man misleads you, for you are not biased by men's wealth or rank.

My dear friend, you are acting faithfully in all your behaviour towards the brethren, even when they are strangers to you.