"please give a quote from either or both men that states clearly and unambiguously that God is the author, creator, and cause of evil."
Gen 2:7 "And the LORD God formed man [of] the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul." Man is less than God in all his ways, ergo evil, even Adam, who only approximated God, i.e. made in His image.
That is not a quote from Luther or Calvin, unless you are now claiming that both men wrote the bible.
I posted: "please give a quote from either or both men [Luther or Calvin or both] that states clearly and unambiguously that God is the author, creator, and cause of evil."