God added a story of a woman taken in adultery (John 7:53-8:12) into the Gospel according to St. John after it was first distributed; the content of this story and its late insertion signals that Jesus, as portrayed by John, did more than perform miracles and deliver discourses. "Ether 4:16 and Jesus Christ," an original Bible study, uncovers a simple, hidden message. "Ether 4:16" reveals that Jesus compared the woman's adultery to the story in the Old Testament of the Israelites' idolatry to a golden calf (Exod. 32:1-33:3). "Ether 4:16" shows that understanding St. John's Gospel comes after applying the key, linking verse John 1:17, "For the Law was given by Moses, but grace and truth came by Jesus Christ" (King James Version) all the way through the Gospel. The Gospel uses the principles in this verse to reexamine stories from the books of Moses. Does Jesus compare the adultery of the woman with the idolatry of the people of Moses? By writing the words on the ground with his finger, does Jesus recall the words written by the finger of God, the testimony-engraved on stone tables-that Moses threw down and broke in anger when he saw the calf and the dancing people? Might Jesus, in his command for the scribes and Pharisees to stone the woman, be alluding to Moses' command to the sons of Levi to slay their brothers, companions, and neighbours? Examination of the book reveals many connections-similar or contrasting-between St. John's Gospel and the books of Moses. In "Ether 4:16 and Jesus Christ," the author records a teaching story or command from Moses' ministry on the left side of the page, recounts the parallel story or discourse from Jesus' ministry on the right, and provides the linking verse at the top of the page. The verse Ether 4:16 refers to the Gospel according to St. John and the Revelation of St. John the Divine unfolded; exposes as spiritual adultery and acting without God's command, the books, sermons, Bible lessons, etc., that he has not caused to be written; shows that the Word of God is flawless, not requiring endless notes, cross references, and comments; reaffirms that the authority to teach the Gospel and the difference between good and evil belongs to the Teacher, the Spirit; and admonishes that those outside the Church of Jesus Christ of Latter-day Saints, having rejected Jehovah, understand neither the scriptures, nor the power of God. Indeed, the Living God has no need for men to explain the scriptures and the Gospel of Jesus Christ. (The author has no affiliation with the Church of Jesus Christ of Latter-day Saints; indeed, permission to reproduce the scripture Ether 4:16 was denied by the Intellectual Property Division of the Church of Jesus Christ of Latter-day Saints.) St. John's Gospel is a keystone, but is it also an enigma, requiring extensive clarification? According to John 1:17, this Gospel is composed of parallel and contrasting elements, simply.