In the years which followed his separation from the church at Providence, he left no uncertainty as to his Baptist views on every question save that of the proper administrator of baptism and its kindred subject of ordination. In all other views he was a loyal Baptist until his death. In his day, the Baptists were divided into two recognized divisions, namely, Particular and General Baptists. Dr. Henry M. King, of Providence, one of the successors of Roger Williams in the pastorate of the Providence church, describes Roger Williams as a “High-church Baptist.” The late Reuben A. Guild, for many years librarian of Brown University Library, and a thorough student of the original sources of information, writes thus of Roger Williams in his history of Brown University: In regard to the other great doctrines held by the Baptists, liberty of conscience, or soul-liberty, the entire separation of Church and State, the supreme headship of Christ in all spiritual matters, regeneration through the agency of the Holy Spirit, and a hearty belief in the Bible as God’s divinely inspired and miraculously preserved word and the all-sufficient rule for faith and practice, he was throughout life a sincere believer in them all and an earnest advocate of them, as his letters and published works abundantly show. In Williams’ book, “Christenings make not Christians,” we have the most radical Baptist teaching in regard to the errors of infant sprinkling. He attacked the very foundation of the pedobaptists. He insisted that only the regeneration of the heart, through the ministry of the Holy Spirit, could make any person a Christian. He believed that believers’ immersion is the New Testament baptism. In a letter to Governor Winthrop, dated December 10, 1649, he writes: Mr. John Clarke hath been here lately and hath dipped them. I believe their practice comes nearer the practice of our great Founder, Jesus Christ, than any other practices of religion do. In his debate with Fox, he writes thus, eleven years prior to his death: That gallant and heavenly and fundamental principle of the true matter of a Christian congregation, flock or society, namely, actual believers, true disciples and converts, such as can give an account of how the grace of God hath appeared unto them.