Apparently so...
"It is the first principle of the Gospel to know for a certainty the character of God and to know that we may converse with Him as one man converses with another, and that He was once a man like us; yea, that God himself, the Father of us all, dwelt on an earth, the same as Jesus Christ Himself did." -- Joseph Smith, Jr., Journal of Discourses 6:3; Times and Seasons 5:614; History of the [Mormon] Church 6:305
Discourse and sermons are not scriptures.
Some take liberties but it must be witness by the quorum of the 12 each must receive a witness by the power of Holy Ghost in order for the couplet to be a doctrine.
So no matter how intriguing that couplet is to the LDS, the LDS must wait upon the Lord before it becomes a doctrine.