'In the Spirit' in the Bible

but now we are done with the Law, we have died to what once held us, so that we can serve in a new way, not under the written code as of old but in the Spirit.

For those who follow the flesh have their interests in the flesh, and those who follow the Spirit have their interests in the Spirit.

But you are not in the flesh, you are in the Spirit, since the Spirit of God dwells within you. Anyone who does not possess the Spirit of Christ does not belong to Him.

never let your zeal flag; maintain the spiritual glow; serve the Lord;