This essay aims to summarize and explore two issues that, in the exegetical and
representational traditions of the biblical text, have triggered a myriad of
semiotic intelligences. First, the nature of Cain’s face at the moment of the
sacrifice refused him by the Lord, a face variously interpreted as angry, sad,
dejected, depressed, dark. Second, the nature of the sign imposed by God on Cain
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