it in a systematic way and limit ourselves to that which is necessary for us to know. How it is to be maintained and defended against heretics and sectarians we shall leave to the scholars. [3] In the first place, we must above all be familiar with the words upon which baptism is founded and to which everything is related that is to be said on the subject, namely, where the Lord Christ says in the last chapter of Matthew [28:19*]: [4] “Go into all the world, teach all the heathen, and baptize them