As far as Judaism vs Christianity goes, I wonder when the idea of Satan being a single person and chief of the fallen angels first appeared? Was this taught in Judaism at all or is it a late day Christian idea?
Jesus seemed to have a good understanding of Satan as an individual being. This being the case, why would we care what the Jews believe? They obviously did not get it right or they would not have crucified their savior. So, what would cause us to believe that they understood anything about the spiritual world.
You must love them as yourself,they are our neighbors.
Love for Enemies
27“But I tell you who hear me: Love your enemies, do good to those who hate you, 28bless those who curse you, pray for those who mistreat you. 29If someone strikes you on one cheek, turn to him the other also. If someone takes your cloak, do not stop him from taking your tunic. 30Give to everyone who asks you, and if anyone takes what belongs to you, do not demand it back. 31Do to others as you would have them do to you.
32“If you love those who love you, what credit is that to you? Even ‘sinners’ love those who love them. 33And if you do good to those who are good to you, what credit is that to you? Even ‘sinners’ do that. 34And if you lend to those from whom you expect repayment, what credit is that to you? Even ‘sinners’ lend to ‘sinners,’ expecting to be repaid in full. 35But love your enemies, do good to them, and lend to them without expecting to get anything back. Then your reward will be great, and you will be sons of the Most High, because he is kind to the ungrateful and wicked. 36Be merciful, just as your Father is merciful.
37“Do not judge, and you will not be judged. Do not condemn, and you will not be condemned. Forgive, and you will be forgiven. 38Give, and it will be given to you. A good measure, pressed down, shaken together and running over, will be poured into your lap. For with the measure you use, it will be measured to you.”