Canons of Dort 3.6

Chapter 3 — Third and Fourth Head of Doctrine: Of the Corruption of Man, His Conversion to God, and the Manner Thereof

Section 6. Article 6: The Saving Power of the Gospel. What, therefore, neither the light of nature nor the law can do, God accomplishes by the power of the Holy Spirit, through the Word or the ministry of reconciliation. This is the gospel about the Messiah, through which it has pleased God to save believers, in both the Old and the New Testaments.