Various Scriptures | Pastor Matt Jones | 1/9/2022. In this sermon, Pastor Matt teaches us a biblical theology of the mission of the church and discipleship through catechism. A catechism is a method of teaching using questions and memorized answers. It has been in wide use in both the Roman Catholic and Protestant traditions for centuries. Del Rey Church is following a catechism throughout the year as we have the past several years. Why? Let's find out.