Skeptics surround the man who was healed of his blindness. They question his identity, they question the healing, and they question the character of the Lord who healed him. But the man stands his ground and continues to testify of the truth. In this study, we examine the four tactics of skeptics, the ABCD of Skepticism: Alternate Narrative, Bogus Authority, Character Assassination, and Denial of Facts. May the Lord evermore strengthen our testimony before the skeptics around us to stand firm upon the undeniable truth of God.