'Believing' in the Bible

By common confession, the secret of our godly worship is great: In flesh was he revealed to sight, kept righteous by the Spirit's might, adored by angels singing. To nations was he manifest, believing souls found peace and rest, our Lord in heaven reigning!

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.