Track Changes of LDS Documents:

Book of Commandments Chapter VI

vs

Doctrine and Covenants Section 7

See the originals side by side from official Church sources here From LDS.org regarding changes to the D&C here . From the preface to the Book of Commandments

A Revelation given t o Joseph Smith the Prophet and Oliver Cowdery , in at Harmony, Pennsylvania, April, 1829, when they desired to know inquired through the Urim and Thummim as to whether John, the beloved disciple, tarried on earth in the flesh or had died . Translated from The revelation is a translated version of the record made on parchment written by John and hid hidden up by himself.

And the Lord said unto me, John my beloved, what desirest thou? For if you shall ask what you will, it shall be granted unto you.

And I said unto him: Lord, give unto me power over death that I may live and bring souls unto thee.

And the Lord said unto me: Verily, verily I say unto thee, because thou desiredst desirest this, thou shalt tarry till I come in my glory , and shalt prophesy before nations, kindreds, tongues and people.