I stumbled upon this article. If the logic is flawed, I don't see how.
HERE is another similar article, that is acredited to "Reasoning from the Scriptures." I cannot verify that attribution, but the argument shares some of the wording with the previous link.
REPENT! And give Me glory according to the New Covenant by which you are saved. Call on My name by the name of He who I have given My name. One sin repented in the Christs name, all are forgiven you. ~ God [Letters from God and His Christ - Volume 4 ~ Transgression]