Midrash su Salmi 36:12

A parable, to what is the matter like? To a king || who married a woman and made her supreme over all that he had. He said to her: All that I have shall be in thy hands, except this house, which is full of scorpions. A certain old man visited her; he asks, for instance, for vinegar. He said to her: Wilt thou argue that he deals kindly with thee? He deals with me (thus): over all that he possesses has he made me supreme. Thus said he to her: Behold, all that I have is given into thy hands except this house, which is full of scorpions. (The old man) said to her: Is not all the jewellery of the king indeed in this house? But he wishes to marry another woman, and to give them to her. The king is the first man (Adam), the woman is Eve, and the one who asked for vinegar is the serpent; and concerning them (the text) says, "There are the workers of iniquity fallen, they are thrust down, and shall not be able to rise" (Ps. 36:12).

The serpent went and touched the tree, which commenced to cry out, saying: Wicked One! do not touch me! as it is said, "Let not the foot of pride come against me, and let not the hand of the wicked drive me away. There are the workers of iniquity fallen" (Ps. 36:11, 12).

What was the tree, from which Adam and Eve ate? Rabbi Meir said, it was wheat. When a person lacks knowledge people say "That person has not eaten bread made from wheat even a day." Rabbi Shmuel bar Rabbi Yitzhak asked before Rabbi Zeira and said to him "Is it possible that it is wheat?" He said to him, "Yes!" He said to him, "But isn't it written, 'tree'" He said to him, "It rose like the ceders of Lebanon" Rabbi Yaakov Bar Aha said: Rabbi Nechemiah and the Rabbis disagree. Rabbi Nechemiah said, "[When we bless our bread we should say]...'the one who brings bread from the earth', since bread already came from the earth." But the Rabbis say, "'who is bringing bread from the earth' since in the future he will bring bread from the earth, as it is said, 'There will be a abundant grain in the land.' (Psalm 72:16). What does the word lefet mean? Two [scholars] disagree. They are Rabbi Hanina son of Yitzhak and Rabbi Shmuel Bar Ami. One says: lefet means there was no bread and the other says lefet means there will be no bread in the future. Rabbi Jeremiah recited the blessing before Rabbi Zeira as "The one who brings bread from the earth" and he praised him. But does that mean we hold like Rabbi Nehemiah? Rather we say it so we don't mix up the letters.