The Study on Psalms 45, Part 1 is titled "What is the Horse of the Kingdom and how does that relate to the Torah?" This title comes out of the Aramaic Targum and the rabbis have an interesting perspective that has historically caused this Psalm to be interpreted as Messianic. This may be why the author of the book of Hebrews used verses from this Psalm to describe Yeshua the Messiah in Hebrews chapter 1.