I will like for the experts of the Abrahamic Trilogy to discuss with me why it's likely that Satan is Lucifer.
I would like us to map out the pathing from OT to NT and motive for God to have lied or somehow imperfectly have portrayed his message in OT for there to need to be a NT and later Qur'an.
In my opinion, the logical explanation is that it's Lucifer who became Jesus and that was what he was smited and sent down to become. "Down to" where? Not Hell, that's not even mentioned in the OT ever. Instead, he was sent down to the realm of mortals, as Jesus. Blatantly. Read the entire NT, the storyline doesn't add up at all if Lucifer is the one who became Satan. Why are Jesus and his disciples so mentally incapacitated that they can't refer to Lucifer by his actual name even once? It's because they aren't talking about Lucifer, they are talking about the OT God. Read every single reference to the Devil, AKA Satan. The Devil (the enemy of Jesus, not God) is described again and again as being as ancient as God, from the beginning and the only entity that can ever compete with God and corrupt you in the way God can bless you. If you read other verses from both Testaments it's very blatant that God is the only being as ancient as 'himself' and that 'he' is very clearly the only entity capable of corrupting you in spite of what he could and would bless you with otherwise.
It would not be viable, at all, for a being of limited intellect, power and longevity to keep coming back just as strong to corrupt and even out-persuade God in situations where the omnipotent, omniscient and omnipresent God is somehow defeated by the smarter, smoother-talking Devil. That is totally and utterly ridiculous to suggest unless the Devil is simply a personality that God takes at times and is there to test how much faith you have in his original personality.