Faith: Heidelberg Catechism 21. Q. What is true faith? A. True faith is a sure knowledge whereby I accept as true all that God has revealed to us in his Word. 1 At the same time it is a firm confidence 2 that not only to others, but also to me, 3 God has granted forgiveness of sins, everlasting righteousness, and salvation, 4 out of mere grace, only for the sake of Christ's merits. 5 This faith the Holy Spirit works in my heart by the gospel. 6 1.Jn 17:3, 17; Heb 11:1-3; Jas 2:19. 2.Rom 4:18-21; 5:1; 10:10; Heb 4:16. 3.Gal 2:20. 4.Rom 1:17; Heb 10:10. 5.Rom 3:20-26; Gal 2:16; Eph 2:8-10. 6.Acts 16:14; Rom 1:16; 10:17; 1 Cor 1:21. Westminster Shorter Catechism 86 Q: What is faith in Jesus Christ? A: Faith in Jesus Christ is a saving grace, whereby we receive and rest upon him alone for salvation, as he is offered to us in the gospel. Ephesians 2:8–9 For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so ...