'Faith in Christ' in the Bible

We, though we are Jews by birth and not outcasts of Gentile origin, know that no one is pronounced righteous as the result of obedience to Law, but only through faith in Christ Jesus.

yet knowing that a man is not justified by the works of the law but through faith in Jesus Christ, even we believed on Christ Jesus, that we might be justified by faith in Christ, and not by the works of the law: because by the works of the law shall no flesh be justified.

But the scripture has shut up all under sin, that the promise by faith in Christ Jesus may be given to those who believe.

For ye are all the children of God by faith in Christ Jesus.