Revelation, circa August 1830 [D&C 27]

28th. Commandment AD 1830
A Revelation to the Church given at Harmony susquehannh  County State of Pennsylvania given to Joseph the Seer at a time  that he went to purchase wine it for Sacrament & he was stoped by  an Angel & he he spok to him as follows Saying
Listen to the voice of Jesus Christ your Lord  your God & your Redeemer whose word is quick & powerful  for Behold I say unto you it mattereth not what ye <shall> eat  or what ye shall drink when ye partake of the sacrament  if it so be that ye do it with an eye single to my glory  Remembering unto the father my Body which [was] laid down  for you & my blood which was shed for you the Remission of  your sins Wherefore a commandment I give unto you that  ye shall not Purchase Wine neither strong drink of your  enemies Wherefore ye shall partake none except it is made  new among you yea in this my Fathers Kingdom which  shall be built up on the earth Behold this is wisdom in me [p. 35]
Several times during summer 1830, JS attempted to confirm recently baptized church members at Colesville (now Nineveh), New York, without success. In August, Newel and Sally Knight traveled from Colesville to visit JS and Emma Smith in Harmony (now Oakland), Pennsylvania. JS decided to perform their confirmation and partake of the Lord’s Supper at the same time. When he set out to obtain wine for the sacrament service, he reported an encounter with a heavenly messenger that resulted in this revelation.
John Whitmer copied this text into Revelation Book 1 as “28th Commandment AD 1830” sometime between March and June 1831. It is addressed to the church with the explanation that it was given to “Joseph the Seer” by an angel.
The 1833 Book of Commandments assigns a date of “September 4, 1830,” as does the 1835 Doctrine and Covenants. Other period documents, however, offer circumstantial evidence supporting an August 1830 dating.