Post that scripture if you don't mind?
It would be my pleasure...
Joh 8:44 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.
Satan was a murderer and a liar from the beginning. He was not Lucifer at the time of the garden, this had already occurred...
Isa 14:12 "How you are fallen from heaven, O Lucifer, son of the morning! How you are cut down to the ground, You who weakened the nations!
Isa 14:13 For you have said in your heart: 'I will ascend into heaven, I will exalt my throne above the stars of God; I will also sit on the mount of the congregation On the farthest sides of the north;
Isa 14:14 I will ascend above the heights of the clouds, I will be like the Most High.'
Eze 28:12 "Son of man, take up a lamentation for the king of Tyre, and say to him, 'Thus says the Lord GOD: "You were the seal of perfection, Full of wisdom and perfect in beauty.
Eze 28:13 You were in Eden, the garden of God; Every precious stone was your covering: The sardius, topaz, and diamond, Beryl, onyx, and jasper, Sapphire, turquoise, and emerald with gold. The workmanship of your timbrels and pipes Was prepared for you on the day you were created.
Eze 28:14 "You were the anointed cherub who covers; I established you; You were on the holy mountain of God; You walked back and forth in the midst of fiery stones.
Eze 28:15 You were perfect in your ways from the day you were created, Till iniquity was found in you.
Until iniquity (sin, lawlessness) was found in him. There can be no sin, no iniquity, no lawlessness without LAW...
Rom 4:15 because the law brings about wrath; for where there is no law there is no transgression.
Rom 5:13 (For until the law sin was in the world, but sin is not imputed when there is no law.
And what is sin?
1Jn 3:4 Whoever commits sin also commits lawlessness, and sin is lawlessness.
The KJV has it this way...
1Jn 3:4 Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.
And what does Paul say?
Rom 7:7 What shall we say then? Is the law sin? Certainly not! On the contrary, I would not have known sin except through the law. For I would not have known covetousness unless the law had said, "YOU SHALL NOT COVET."
Now please hearken back to this...
Rom 4:15 because the law brings about wrath; for where there is no law there is no transgression.
Rom 5:13 (For until the law sin was in the world, but sin is not imputed when there is no law.
Sin is not imputed when there is no law yet we read this...
Rom 5:14 Nevertheless death reigned from Adam to Moses, even over those who had not sinned according to the likeness of the transgression of Adam, who is a type of Him who was to come.
There was Law in the garden and prior to that else Adam could not have sinned nor could Satan.
You should actually read the Word of God instead of railing against the Law.