'In Christ' in the Bible

and to the faithful in Christ Jesus, Grace be to you, and peace from God our Father, and the Lord Jesus Christ.

That in the dispensation of the fulness of the times, he might gather together into one in Christ all things which are in heaven, and which are in earth,

That we who first believed in Christ, might be to the praise of his glory.

Which he wrought in Christ, raising him from the dead; and he hath made him sit at his own right-hand in heavenly places,

According to the eternal purpose which he purposed in Christ Jesus our Lord,