'Loyal' in the Bible

They will wage war against the Lamb (Christ), and the Lamb will triumph and conquer them, because He is Lord of lords and King of kings, and those who are with Him and on His side are the called and chosen (elect) and faithful.”

And I saw heaven opened, and behold, a white horse, and He who was riding it is called Faithful and True (trustworthy, loyal, incorruptible, steady), and in righteousness He judges and wages war [on the rebellious nations].