A really good rule for experienced athletes is never forget to practice the fundamentals. A veteran basketball player will work on free throw shooting. A veteran baseball player takes batting practice. This same rule applies to Christians. Teaching Matthew to Christian veterans is like going over the fundamentals.
I also welcome any newer Christians reading this study and hope you enjoy it. I promise to cover a lot of the fundamentals, not only to help the Christian novice, but also as a reminder to Christian veterans. One can never over-learn the Bible and what it teaches.