It's hard to find anything in the Doctrines and Covenants with which to agree but I'll make an exception here. I would equate Joseph Smith's "truth" and the product of his bowels.
(I guess Joe's fave sport was "boweling", eh?...striking down as many Christian doctrines as possible)
Smith "bowled" over the biblical doctrine of...
...eternal hell...into a temporary spirit prison for most...
...Salvation by grace into having to work your way to earn forgiveness & to live forever with Heavenly Father...
...One God vs. MANY...
...God being God from eternity past into a man who got the "God job" for this part of the universe...
...Our Lord (Father/Son/Holy Spirit) who created all things & all beings out of nothing into a mere organizer who is no more eternal past than you or me!
...Jesus sweating blood for our sins as a "works-based" laborious act of prayer (Gethsemane) vs. being THE Sacrificial Lamb on the cross of Calvary -- dying for our personal sins...
...New Testament teaching being the temple as the collective God-made Body for the Living Holy Spirit to dwell into a man-made focus of baptisms/endowments for the dead...
...the diversity of Jesus' Worldwide Church within One Body -- having begun 2000 years ago into ONLY a Salt Lake City-based man-made organization begun in the 19th century...
...The Personal Holy Spirit who has all the attributes of the Deity to oft' being described by Mormon leaders as an impersonal "it"...
...Jesus as the ONLY Savior to being just one of MANY Mormon "saviors" -- and who himself to Mormon leadership is a "saved being"...