The Song of Solomon is inspired scripture, and therefore it can be used for doctrine, reproof, correction, instruction for righteousness, that the man of God may be perfect and thoroughly furnished unto good works. When I said “fiction,” keep in mind I also affirmed with the modern RCC that it is “replete with historical and geographical errors.” We cannot consider something like that to be inspired by the Holy Spirit. If the Holy Spirit wanted to write a poem, He would not masquerade it as history.
“The Song of Solomon is inspired scripture, and therefore it can be used for doctrine...”
What doctrinal statements exist in the Song of Solomon that elevate it to the level of canon?
I don’t believe the apocrypha is inspired either. But I’ve found it to be useful in refuting some of the errors I see in evangelicalism today. I Maccabees is especially useful for helping us understand the fulfillment of the prophecies in Daniel 7 and 8 regarding the “little horn.”
But that’s for another discussion. There is enough value in at least some of the apocryphal books to keep them around.