'In the Faith' in the Bible

confirming the souls of the disciples, exhorting them to continue in the faith, and that through many tribulations we must enter into the kingdom of God.

So the churches were strengthened in the faith, and increased in number daily.

Watch ye, stand fast in the faith, quit you like men, be strong.

Try your own selves, whether ye are in the faith; prove your own selves. Or know ye not as to your own selves, that Jesus Christ is in you? unless indeed ye be reprobate.

And having this confidence, I know that I shall abide, yea, and abide with you all, for your progress and joy in the faith;

if so be that ye continue in the faith, grounded and stedfast, and not moved away from the hope of the gospel which ye heard, which was preached in all creation under heaven; whereof I Paul was made a minister.

For they that have served well as deacons gain to themselves a good standing, and great boldness in the faith which is in Christ Jesus.

This testimony is true. For which cause reprove them sharply, that they may be sound in the faith,