Another interesting thing about the seed of the serpent. God puts enmity between them. And today we see that visibly demonstrated to us in fallen man who is of Satan who is at enmity with Christ. What we know about also is the enmity between the demons and Christ. The enmity, the hatred shows that they are not of the love of God, and have Satan as their father.
Romans 8:6-8 New King James Version (NKJV)
6 For to be carnally minded is death, but to be spiritually minded is life and peace. 7 Because the carnal mind is enmity against God; for it is not subject to the law of God, nor indeed can be. 8 So then, those who are in the flesh cannot please God.
9 But you are not in the flesh but in the Spirit, if indeed the Spirit of God dwells in you. Now if anyone does not have the Spirit of Christ, he is not His.
Jesus tells us those who do not listen to Him are of their father the devil and their desires are to do the devils will, yet they may claim God as their father but they deny Him by what they do.
John 6
31 Then Jesus said to those Jews who believed Him, “If you abide in My word, you are My disciples indeed. 32 And you shall know the truth, and the truth shall make you free.”
33 They answered Him, “We are Abraham’s descendants, and have never been in bondage to anyone. How can You say, ‘You will be made free’?”
34 Jesus answered them, “Most assuredly, I say to you, whoever commits sin is a slave of sin. 35 And a slave does not abide in the house forever, but a son abides forever. 36 Therefore if the Son makes you free, you shall be free indeed.
Abraham’s Seed and Satan’s
37 “I know that you are Abraham’s descendants, but you seek to kill Me, because My word has no place in you. 38 I speak what I have seen with My Father, and you do what you have [n]seen with your father.”
39 They answered and said to Him, “Abraham is our father.”
Jesus said to them, “If you were Abraham’s children, you would do the works of Abraham. 40 But now you seek to kill Me, a Man who has told you the truth which I heard from God. Abraham did not do this. 41 You do the deeds of your father.”
Then they said to Him, “We were not born of fornication; we have one Father—God.”
42 Jesus said to them, “If God were your Father, you would love Me, for I proceeded forth and came from God; nor have I come of Myself, but He sent Me. 43 Why do you not understand My speech? Because you are not able to listen to My word. 44 You are of your father the devil, and the desires of your father you want to do. He was a murderer from the beginning, and does not stand in the truth, because there is no truth in him. When he speaks a lie, he speaks from his own resources, for he is a liar and the father of it. 45 But because I tell the truth, you do not believe Me. 46 Which of you convicts Me of sin? And if I tell the truth, why do you not believe Me? 47 He who is of God hears God’s words; therefore you do not hear, because you are not of God.”