“Jesus Was Married”, pg. 94, by Ogden Kraut; “Since Joseph Smith did hold the keys of the kingdom in the last days, (D&C 65:2, 115:19) and was the “Rod” from the loins of the Stem of Jesse, he would have the blood of Abraham, Jesse, and the Savior, according to the testimony of scripture and revelation. It would be evident that Joseph Smith should also know these facts. The Prophet did understand them—and more—but he was reluctant to tell them because of the traditions and ideologies of modern Christianity.”
Jesus’ lineage can be found in the books of Matthew and Luke; neither of these books says anything about Joseph Smith being in the lineage of Jesus Christ.
Additionally there is Romans 9:7 which says; “Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called.”