'Faithful' in the Bible

He guards the steps of His faithful ones,but the wicked perish in darkness,for a man does not prevail by his own strength.

And I will raise me up a faithful priest, that shall do according to that which is in mine heart and in my mind: and I will build him a sure house; and he shall walk before mine anointed for ever.

All Israel from Dan to Beersheba realized that Samuel was faithful as a prophet to Yahweh.

If I continue to live, treat me with the Lord’s faithful love, but if I die,

don’t ever withdraw your faithful love from my household—not even when the Lord cuts off every one of David’s enemies from the face of the earth.”

Then Ahimelech answered the king, and said, And who is so faithful among all thy servants as David, which is the king's son in law, and goeth at thy bidding, and is honourable in thine house?