The word God used for this particular snake with Eve is called Nāḥāš. Nāḥāš means fortune telling/divination, which that is what the serpent did when he told Eve, 5 for God doth know that in the day ye eat thereof, then your eyes shall be opened, and ye shall be as God, knowing good and evil.' < God even confirms that is what Satan did, Fortune told/Divinated Eve (22 And the LORD God said: 'Behold, the man is become as one of us, to know good and evil).
So God knew the snake was Evil, which is Satan, and used a term only used for snake defined as fortune telling/divination.
No other snake has been called this. So we know it is Satan by the word Nāḥāš.
And if you read Genesis 3, God uses the term "Nāḥāš" BEFORE Satan ever speaks to Eve.
Genesis 3:1 Now the serpent "Nāḥāš" was more subtle...
So God is making it clear before the serpent speaks this is Satan.
So God knew the snake was Evil, which is Satan, and used a term only used for snake defined as fortune telling/divination.
No other snake has been called this. So we know it is Satan by the word Nāḥāš.
And if you read Genesis 3, God uses the term "Nāḥāš" BEFORE Satan ever speaks to Eve.
Genesis 3:1 Now the serpent "Nāḥāš" was more subtle...
So God is making it clear before the serpent speaks this is Satan.