There's no "claim" or "may have been" about it. I have given you the specific location of at least eight different Davis speeches and letters that are explicitly indexed as being on the subject of the Confederat Supreme Court.
That fact in itself contradicts your oft-stated yet wholly gratuitous allegation that Davis abandoned the issue after paying it "lip service" in a single speech.
Nonsense. You have provided nothing. For all we know Davis spoke against the court or mentioned the real Supreme Court. The only quote you have provided is a gratuitous, and no doubt insincere, request that a couth be established. And he never mentioned the matter to the congress again.