It had been just over a year since Paul preached the Gospel to the Galatians, so he was surprised to find that in such a short time they had been misled by impostors. Without delay, skipping the usual thanksgiving, he goes straight to what he considers most important: the Gospel he preached has no substitutes, and anyone who tries to replace it deserves the severe condemnation of anathema. Preserving the “memory of Jesus” or the “apostolic tradition” passed down by the witnesses of the resurrection has always been a significant challenge for the Christian community. It was then, and it still is today. For the Apostle, the “memory of Jesus” was not just an abstract doctrine, but the living experience of the Gospel.