'Believers' in the Bible

Do not let anyone look down on you because you are young, but be an example for other believers in your speech, behavior, love, faithfulness, and purity.

Moreover, those who have believing masters should be respectful to them, because they are fellow believers. In fact, they must serve them even better, because those who benefit from their service are believers and dear to them. These are the things you must teach and exhort.