'In Christ' in the Bible

For ye, brethren, became followers of the churches of God in Christ Jesus, which are in Judea; for ye also suffered the same things from your own countrymen, as they likewise from the Jews:

For if we believe, that Jesus died and rose again, so will God bring with him those also that sleep in Christ.

For the Lord himself shall descend from heaven, with a shout, with the voice of an archangel, and with the trumpet of God; and the dead in Christ shall rise first.

for this is the will of God in Christ Jesus concerning you.