Spilsbury believed that once such agreement in conversion and truth was ascertained and the "matter," converted and convinced persons so constituted has covenanted with fully informed consciences to be the people of God, the covenant is sealed with baptism. "Thus being in Covenant with God by faith in Jesus Christ, in which their state consists, and so the agreement made, and the covenant passed between them, now the seal is set to. Which is the outward ordinance of Baptism, to confirm the same," he wrote.