We talked about Confessing the Faith in the 21st Century. Luther had something to say about confessing and witnessing in a sermon on 1 Thessalonians 4.
This lesson is easy of interpretation. It is a general and earnest admonition on the part of Paul, enjoining us to an increasing degree of perfection in the doctrine we have received. This admonition, this exhortation, is one incumbent upon an evangelical teacher to give, for he is urging us to observe a doctrine commanded of God. He says, “For ye know what charge [commandments] we gave you through the Lord Jesus.” Whatever Christians do, it should be willing service, not compulsory; but when a command is given, it should be in the form of exhortation or entreaty. Those who have received the Spirit are they from whom obedience is due; but those not inclined to a willing performance, we should leave to themselves.
But mark you this: Paul places much value upon the gift bestowed upon us, the gift of knowing how we are “to walk and to please God.” In the world this gift is as great as it is rare. Though the offer is made to the whole world and publicly proclaimed, further exhortation is indispensable, and Paul is painstaking and diligent in administering it. The trouble is, we are in danger of becoming indolent and negligent, forgetful and ungrateful–vices menacing and great, and which, alas, are altogether too frequent. Let us look back and note to what depths of darkness, of delusion and abomination, we had sunk when we knew not how we ought to walk, how to please God. Alas, we have forgotten all about it; we have become indolent and ungrateful, and are dealt with accordingly.
