For God does know that in the day you eat thereof, then your eyes shall be opened, and you shall be as gods, knowing good and evil.
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Ephrem The Syrian
AD 373
Now the tempter's words would not have caused the tempted pair to sin had not their greed abetted the tempter. And even if the tempter had not come, the Tree with all its beauty would have caused them a struggle with their greed. In other words, they used the serpent's counsel as an excuse, for it was their own greed, which conformed with the serpent's counsel and went beyond it, that brought harm upon them.
God. The old serpent's aim is, to make us think God envies our happiness. (Haydock)
Or he would have Eve to suppose, she had not rightly understood her maker, who would surely never deprive her of a fruit which would give her such an increase of knowledge, as to make her conclude she was before comparatively blind. (Menochius)
As gods, Hebrew Elohim, which means also princes, angels, or judges. It appears, that our first parents had flattered themselves with the hopes of attaining a divine knowledge of all things. (Calmet)