Sentence:  This leads Irenaeus to the somewhat startling notion that Adam and Eve died on the same day that they disobeyed , namely , on a Friday , as a parallel to the death of Christ on Good Friday ; he sees a parallel also to the Jewish day of preparation for the <WSD>Sabbath</WSD> . 
Meaning of the word marked with <WSD> tags:  a day of rest and worship: Sunday for most Christians; Saturday for the Jews and a few Christians; Friday for Muslims