I missed the part where the Israelites carried Elisha’s severed limbs about and kissed them.
In fact, the Bible doesn't say how the Israelites treated Elisha's bones. So how do you know how Elisha's bones should have been treated? Should Elisha's bones have been respected or despised as "rotten"? How do you know how the relics of saints should be treated if the Bible is silent?
And where is your doctrine of "the Bible ALONE as the SOLE rule of faith" in the Bible?
Hint: it can't be in the Bible, since the Bible wasn't canonized until centuries after the last book of the Bible was written. So no passage in Scripture can possibly refer to the Bible as a whole.
The doctrine was an invention of Luther.
How do you treat the remains of your relatives? Do you regard their remains as rotten? Or do you treat their remains reverently?
I'm sure it's the latter. Sometimes people are buried underground in expensive caskets. Sometimes the caskets are kept above ground in mausoleums. Sometimes the remains are cremated and kept in an urn in a home. A loved one might kiss a casket at the burial, kiss a headstone or kiss a cremation urn. All of these are ways of expressing love in a reverent manner.
The remains of saints aren't due any less respect.