This work contains basic articles from believers of the Revival era in the 1830s. Faced with the ruin of the church and the impossibility of conforming their walk to the Word, they understood that God was asking them to go "outside the camp" (Heb. 13:13). They discovered the value of the simple gathering of "two or three" in the name of the Lord and enjoyed His presence among them according to Matthew 18:20, as at the dawn of the Christian period. They realized the freedom of the action of the Spirit among the believers thus gathered, outside of any ministry instituted by men. A real thirst for the truth led them to discover other lights in the Word, whose absolute authority they recognized. The clarity of their teaching, always based on Scripture, and their energy in upholding the truth in all controversies, invite us to pay attention to the values they defended, because they were not trained in the school of men. “The LORD, the God of Israel, before whom I stand,” said Elijah (1 Kings 17:1), he had prepared them.