"Be carefull in your loyalties, Satan has nothing to offer eternally" thats something to tell a few of my acquaintences.
See what they have to say about these verses:
44 For you are the children of your father the devil, and you love to do the evil things he does. He was a murderer from the beginning. He has always hated the truth, because there is no truth in him. When he lies, it is consistent with his character; for he is a liar and the father of lies.
And this verse:
Philippians 2
9 Therefore, God elevated him to the place of highest honor
and gave him the name above all other names,
10 that at the name of Jesus every knee should bow,
in heaven and on earth and under the earth,
11 and every tongue confess that Jesus Christ is Lord,
to the glory of God the Father.
Satan's eternal fate (according to Jesus):
41 Then the King will turn to those on the left and say, Away with you, you cursed ones, into the eternal fire prepared for the devil and his demons.
Jesus' kingdom is eternal:
John 18:36
New Living Translation (NLT)
36 Jesus answered, My Kingdom is not an earthly kingdom. If it were, my followers would fight to keep me from being handed over to the Jewish leaders. But my Kingdom is not of this world.
And Satan's kingdom is in the world:
30 I dont have much more time to talk to you, because the ruler of this world approaches. He has no power over me, 31 but I will do what the Father requires of me, so that the world will know that I love the Father. Come, lets be going.
See what they say about that, whether or not they dismiss what Jesus says or if they can put a spin on it.