“’Who will redeem the earth, who will go forth and make the sacrifice for the earth and all things it contains?’ The eldest son said: ‘Here am I;’ but he did not say ‘send me.’ But the second one, which was ‘Lucifer, son of the morning,’ said, ‘Lord, here am I, send me, I will redeem every son and daughter of Adam and Eve that lives on the earth,...”
Journal of Discourses, vol 13: page 282
(A standard work of the LDS church)
The Eldest Son in the above is Jesus. I can send you another passage that expounds on this. It sure sounds like brothers to me.
What you quoting are discoures they are not scripture nor doctrine and never was consider as such!