Thomas's procedure, then, may be summarized in three steps: (1) Fulfilled prophecies and miracles make it credible that the Scriptures taken together as a whole are a revelation from God. (2) As a revelation from God, Scripture is absolutely authoritative. (3) Therefore, those doctrines taught by Scripture that are neither demonstrably provable nor empirically evident may be accepted by faith on the authority of Scripture.
- William Lane Craig