In this scenario perhaps you have noticed that the Serpent doesn't believe that God the Father is Speaking in Parables.
Serpent belief that God the Father is Speaking clearly as what Man's understanding.
When the warning of God reached to the knowledge of the Serpent (Genesis 2:17). He opposed the warning of God the Father (Genesis 3:4-5). Because the serpent belief that God the Father is not Speaking in Parables. That is why he said "You Shall not Surely Die". The Serpent understanding to a dead people are those found in Morgue & Cemetery too.
The Serpent belief that God the Father is Speaking very clear and not Speaking in Parables.
In the times of Our Lord Jesus, despite Scribes and Pharisees were preaching the words of God to the Jews. Even they claimed that their God is God the Father (John 8:41).
But since they can't identify or they don't know who God the Father is, with that they believe that Our Lord Jesus is Speaking very clear and not Speaking in Parables.
JOHN 2:19-20
19 Jesus answered and said unto them, Destroy this temple, and in three days I will raise it up.
20 Then said the Jews, Forty and six years was this temple in building, and wilt thou rear it up in three days?
Because they don't believe that Our Lor Jesus is Speaking in Parables (Mark 4:34)
Our Lord Jesus called them Liars, Murderers and Sons of the Serpent.
JOHN 8:44
44 Ye are of your father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it.