A Sermon on Ephesians 4:5
one Lord, one faith, one baptism, (ESV)
From Ephesians 4:5, Dr. Martyn Lloyd-Jones argues that the unifying faith of Christianity is not unity of doctrine, first and foremost, but it is a unity of faith in Christ. This is the faith that justifies all who are truly Christians. In this we see the saving work of Christ and the application of that work to the hearts and minds of believers by the Holy Spirit. For this reason, the great doctrine of justification by faith alone is at the very heart of the Gospel and Christianity. It is this doctrine that the Reformers fought for, and it is this doctrine that is essential to any true understanding of the Gospel. This is why it is so vital that the Church of our day guards against all heresies that would add anything to the Gospel. For anyone who tries to add anything to faith detracts from God’s glory as the only Savior and hope for fallen mankind. It detracts from the work of Christ on the cross to say that fallen men must do something in addition to the Gospel. To reject justification by faith is to reject the saving Gospel and to reject true Christianity as found in God’s Word.