William Law addresses the fundamental errors in a recent theological treatise, emphasizing that the author's interpretation of the sacrament undermines core Christian doctrines. He argues that understanding the sacrament requires more than just the literal words of Christ; it necessitates a deeper comprehension of the entire scripture and the nature of Christ as our savior. Law warns that adhering to the author's simplistic view leads to spiritual blindness and a misunderstanding of the gospel's essence. He asserts that the apostles themselves did not grasp the full meaning of the sacrament at the time of its institution, highlighting the need for further revelation and understanding through the Holy Spirit.