'In Christ' in the Bible

[even] though I had previously spoken against Christ, and persecuted [Christians] and acted outrageously. However, I obtained mercy because I acted out of ignorance, not believing [in Christ].

For those who have served well [as deacons] acquire for themselves a good standing [i.e., they are respected in the church], and the ability to speak boldly [or, to act confidently] in the faith that is in Christ Jesus [i.e., in the Christian faith].

For that reason we work hard and struggle, because we have our hope set on the living God, who is the Savior of all people, [and] especially of those who believe [in Christ].

Do not allow anyone to look down on you because you are [so] young, but you should be an example to those who believe [in Christ] in your speech, in your conduct, in your love, in your faith [and] in your purity.