But Satan is NOT imprisoned now. He will be when Jesus Returns.
Jesus has already accomplished more than enough to imprison him and take his goods into his household.
Eph 2
So then you are no longer strangers and foreigners, but you are fellow citizens with the saints, and are of God’s household,
Act 26
16 But get up and stand on your feet; for this
purpose I have appeared to you, to appoint you as a servant and a witness not only to the things in which you have seen Me, but also to the things in which I will appear to you, 17 rescuing you from the
Jewish people and from the Gentiles, to whom I am sending you, 18 to open their eyes so that they may turn from darkness to light,
and from the power of Satan to God, that they may receive forgiveness of sins and an inheritance among those who have been sanctified by faith in Me.’
19 “For that reason, King Agrippa, I did not prove disobedient to the heavenly vision, 20 but
continually proclaimed to those in Damascus first, and in Jerusalem, and
then all the region of Judea, and
even to the Gentiles, that they are to repent and turn to God, performing deeds consistent with repentance. 21 For these reasons
some Jews seized me in the temple and tried to murder me. 22
So, having obtained help from God, I stand to this day testifying both to small and great, stating nothing but what the Prophets and Moses said was going to take place, 23
as to whether the Christ was to suffer,
and whether, as first from the resurrection of the dead, He would proclaim light both to the
Jewish people and to the Gentiles.”