Q. 86 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. Understand that you must have faith in Jesus Christ if you would be saved from God's wrath and curse. Faith is indispensable to salvation.

WSC Q87: What Is Repentance unto Life?

The idea of imparting a body of truth (rudiments of the faith) is found repeatedly in scripture under many different terms and descriptions. We are not given a complete catechism or confession in the Bible. That is because we are to write our own according to the needs of the day. They must refute new heresies as they arise. Our Lord has called us to catechise in His church… to teach disciples the basics of the faith. Make the most of this instruction: memorise your Catechism, listen to the messages, and pray for the Spirit to work.