The Nephite prophets, including Jacob, had a clear understanding of Christ’s central role in the Father’s plan hundreds of years before Christ came to earth. Jacob explains that this was true of all true prophets who lived before Christ.
“…We knew of Christ, and we had a hope of his glory many hundred years before his coming; and not only we ourselves had a hope of his glory, but also all the holy prophets which were before us. Behold they believed in Christ and worshiped the Father in his name and also we worship the Father in his name.” (Jacob 4:4-5)
-If all of mankind’s hopes rest on Christ’s redemptive power, how likely would it be that the Holy Spirit testified of Christ to all the true prophets who came before Christ?