Bible-Only Rationalism
Tuckney was particularly concerned about the threats of Socinians and Arminians. They were considered greater threats than previous heretics, not because of what they argued but due to how they developed their arguments. They claimed themselves to be Bible-believing Christians and cited Scripture explicitly in support of their theological agendas. For example, the Racovian Catechism, which was the official confession of Socinianism in the seventeenth century, begins with a strong affirmation of the divine authority, certainty, sufficiency, and perspicuity of the Holy Scriptures. Paul Best’s Mysteries Discovered (1647) is also replete with Bible verses and denies the notion that Christ is divine and coequal with the Father on the ground that there is “not one such word, or any one text tending to that purpose in the whole holy Scriptures.”
Youngchun Cho, Anthony Tuckney, Theologian of the Westminster Assembly (Grand Rapids, MI: Reformation Heritage Books, 2017), 85