Here we go....again....
According to some scholars, some early interpretations of the Bible in Syriac Christianity combined the "curse" with the "mark", and interpreted the curse of Cain as black skin. [7] Relying on rabbinic texts, it is argued, the Syriacs interpreted a passage in the Book of Genesis ("And Cain was very wroth, and his countenance fell") as implying that Cain underwent a permanent change in skin color. [8]
Ephrem the Syrian (306-378): “Abel was bright as the light, / but the murderer (Cain) was dark as the darkness". [9]
In an Eastern Christian (Armenian) Adam-book (5th or 6th century) it is written: “And the Lord was wroth with Cain. . . He beat Cain’s face with hail, which blackened like coal, and thus he remained with a black face". [10]
The split between the Northern and Southern Baptist organizations was over slavery and the education of slaves. At the time of the split, the Southern Baptist group used the curse of Cain as a justification for the practice. In fact, most 19th and early 20th century Southern Baptist congregations in the southern United States taught that there were two separate heavens; one for blacks, and one for whites. [12]
Baptists and other denominations including Pentecostals officially taught or practiced various forms of racial segregation well into the mid-to-late-20th century, though members of all races were accepted at worship services after the 1970s and 1980s when many official policies were changed. In fact, it was not until 1995 that the Southern Baptist Convention officially renounced its "racist roots." [13] Nearly all Protestant groups in America had supported the notion that black slavery, oppression, and African colonization was the result of God's curse on people with black skin or of African descent through Cain [citation needed] or through the curse of Ham, and some churches practiced racial segregation as late as the 1990s [citation needed
The Mormon View
According to Moses 7:5-8......
Although Mormon doctrine teaches this as a revelation from God, this particular teaching, that the curse of dark skin came upon the children of Cain because they practiced genocide on the people of Shum, rather than it being the result of the mark placed upon Cain by God, was radically different than the views widely held by most Evangelical Protestant groups in the U.S. during and before the life of Joseph Smith.
Statements concerning the curse of Cain clearly identify both the mark and curse with the "Negro" race, in Latter Day Saint scripture. Joseph Smith and Brigham Young both identify, without question or doubt, the Black people of African descent as descendants of Cain