Justifying Faith Is Faith in Christ Alone

 "Faith - true faith - always has an object, and this object is the crucified and risen Christ, as revealed in the Gospel. Thus, as the embracing of Christ - in whom is forgiveness, righteousness, and adoption as children of God - is faith the source of justification." 

- David Engelsma, "Gospel Truth of Justification," p. 141 

It has become a reflex in American culture to respond to any sorrow or apprehension with an exhortation, "You just gotta have faith." And that is supposed to cover all of the bases, ranging from seeking a job to cancer to a severely-injured child. When it is said on TV, no definition of "faith" is ever given, nor a statement regarding faith in what or in whom. It is simply faith in faith itself. 

The faith that results in eternal life is not a faith in faith. As Reverend Engelsma says in the quote above, indeed, in the whole book, it isn't faith as a thing that justifies, but rather as faith with Jesus as its object that justifies. As he also says (on the same page), "Faith looks to Christ, trusts in Christ, and embraces Christ. From this Christ, faith receives Christ Himself as the believer's righteousness by imputation. Or to say it differently, from this Christ, to whom faith looks and on whom faith rests and whom faith embraces, the believer receives the righteousness of Christ as his own (by imputation)." 

This is why it is so important to share the Gospel with members of cults or false churches. They have a faith, but it is in a false object, and, therefore, cannot save them. Whether that faith is in the cultic organization, as with Jehovah's Witnesses, or is in the false Jesus created by the organization, as with Mormons, or in the false basis of justification created by the organization, as with Roman Catholics, it is a faith without a saving object, and, therefore, a faith that cannot justify. "We know that a person is not justified by works of the law but through faith in Jesus Christ, so we also have believed in Christ Jesus, in order to be justified by faith in Christ and not by works of the law, because by works of the law no one will be justified" (Galatians 2:16).