Lucifer( the serpent) was created to be more subtle than all the creatures God had made.Lucifer was good until he fell. An example of freewill from before the fall of mankind.
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That subtilty is being the enemy of all unrighteousness, which the children of the devil are, who pervert the right ways of the Lord ( as the serpent did)
The serpent beguiles through that subtilty, which is corruption from the simplicity that is in Christ. ( which we saw that simplicity in the instruction of God to Adam and Eve.)
Genesis 3:1 Now the serpent was more subtil than any beast of the field which the Lord God had made. And he said unto the woman, Yea, hath God said, Ye shall not eat of every tree of the garden?
Acts 13:10 And said, O full of all subtilty and all mischief, thou child of the devil, thou enemy of all righteousness, wilt thou not cease to pervert the right ways of the Lord?
2 Corinthians 11:3 But I fear, lest by any means, as the serpent beguiled Eve through his subtilty, so your minds should be corrupted from the simplicity that is in Christ.
Adam and Eve were not the godly, ( they had sin nature) as God knows how to deliver the godly out of temptation ( of the serpent) but those who walk after the flesh ( all in Adam are in the flesh) walk to lust( Adam and Eve lusted after the tree of knowledge of good and evil) and despised the government( of God) as they showed self will..
2 Peter 2:9 The Lord knoweth how to deliver the godly out of temptations, and to reserve the unjust unto the day of judgment to be punished:
10 But chiefly them that walk after the flesh in the lust of uncleanness, and despise government. Presumptuous are they, selfwilled, they are not afraid to speak evil of dignities.
The serpent( and then his children) was not afraid to speak evil of dignities( of God) and spoke evil against God, and the serpent and his children of the flesh all perish in that corruption( corrupted fro the simplicity that is in Christ by the serpent)
The serpents children of the flesh sport themselves with their on deceivings, and they cant cease from sin, s they are beguiling( as the serpent) unstable cursed souls..
2 Peter 2:12 But these, as natural brute beasts, made to be taken and destroyed, speak evil of the things that they understand not; and shall utterly perish in their own corruption;
13 And shall receive the reward of unrighteousness, as they that count it pleasure to riot in the day time. Spots they are and blemishes, sporting themselves with their own deceivings while they feast with you;
14 Having eyes full of adultery, and that cannot cease from sin; beguiling unstable souls: an heart they have exercised with covetous practices; cursed children: