Out of the Rule of Faith there came in time what tradition miscalls the Apostles' Creed - the Roman baptismal creed, a formulary of great importance in all the West; then other creeds, which also are in a sense expansions of the Rule of Faith.
Their form of church government is Congregational; they take the Bible as the sole rule of faith and practice, and while adopting immersion as the proper mode of baptism, freely welcome Christians of every sect to their communion.
But he understood the Gospel as being primarily an assured hope and a holy law, as fear of the Judge who can cast into hell and as an inflexible rule of faith and of discipline.
The process was accelerated by the demand for a standard or rule of faith and practice.
It allowed that the bishops were the successors of the apostles, that the Catholic rule of faith was a complete and authoritative exposition of Christianity, and that the New Testament was the supreme rule of the Christian life.
The Smaller Catechism, with the Augsburg Confession, was made the Rule of Faith in Denmark in 1537.
To elucidate the rule of faith as set forth in the creed, and further to point out its agreement with the Scriptures, is the object of Irenaeus as a theologian.