The Van Tillian worldview is nothing less than the Reformed faith expressed in the Reformed confessions. Van Tillian philosophy is a Scripture based method, which sets the (Reformed) Christian worldview over and against all other opposing forms of philosophical thought. The antithetical nature of truth versus error is expressed and implicated in many passages of Scripture. The antithesis begins on a simple theonomous premise: Jesus Christ is Lord, that He is the way, the truth, and the life. Think on the implications of Jesus Christ as Lord, is there any area of life where He is not Lord? How do we come into direct relationship with Christ, through monergistic regeneration resulting in believing the gospel. Because of the circular nature of belief in God and the Scriptures, the Christian philosophy of Scripture can be described as "revelational", or a revelational epistemology, which is highly involved in monergistic regeneration. Self-authenticating, self-attesting, etc. are words which reveal the circular nature of the truth in Christ, the center of a Christian worldview.
"We believe that our salvation is by grace; that even the faith that we have comes as a gift from God. There is nothing that we can lay claim to, nothing that which we can boast. Our salvation entirely comes from the Lord." Dr. Roger Schultz