I know that God knows everything and that he gives us free choice. So how can you be sure that after Satan is destroyed there wont be other angels that turn evil and rebel against god?
Thanks for your question. The Bible doesn’t give us a definitive answer to your question about other angels rebelling after Satan is destroyed. The Bible addresses what we need to know in the current age. However, please consider the following:
1 Corinthians 15:24 Then comes the end, when He delivers the kingdom to God the Father, when He puts an end to all rule and all authority and power. 25 For He must reign till He has put all enemies under His feet. 26 The last enemy that will be destroyed is death. 27 For “He has put all things under His feet.” But when He says “all things are put under Him,” it is evident that He who put all things under Him is excepted.
This passage says that all enemies and death will be put under God’s feet. All of what makes life imperfect is because of sin and death: Satan rebelled; he tempted man; man sinned; and, sin brought death. In the end, God will have conquered all of these enemies for us, and reconciled us to Himself. This sounds final.
1 Corinthians 15:52b For the trumpet will sound, and the dead will be raised incorruptible, and we shall be changed. 53 For this corruptible must put on incorruption, and this mortal must put on immortality. 54 So when this corruptible has put on incorruption, and this mortal has put on immortality, then shall be brought to pass the saying that is written: “Death is swallowed up in victory.” 55 “O Death, where is your sting? O Hades, where is your victory?” 56 The sting of death is sin, and the strength of sin is the law.
Again, this passage says that death, Hades, and sin will be no more.
Revelation 20:7 Now when the thousand years have expired, Satan will be released from his prison 8 and will go out to deceive the nations which are in the four corners of the earth, Gog and Magog, to gather them together to battle, whose number is as the sand of the sea. 9 They went up on the breadth of the earth and surrounded the camp of the saints and the beloved city. And fire came down from God out of heaven and devoured them. 10 The devil, who deceived them, was cast into the lake of fire and brimstone where[k] the beast and the false prophet are. And they will be tormented day and night forever and ever.
This passage indicates that Satan, the beast, and the false prophet will be defeated forever.
Revelation 20:11 Then I saw a great white throne and Him who sat on it, from whose face the earth and the heaven fled away. And there was found no place for them. 12 And I saw the dead, small and great, standing before God, and books were opened. And another book was opened, which is the Book of Life. And the dead were judged according to their works, by the things which were written in the books. 13 The sea gave up the dead who were in it, and Death and Hades delivered up the dead who were in them. And they were judged, each one according to his works. 14 Then Death and Hades were cast into the lake of fire. This is the second death. 15 And anyone not found written in the Book of Life was cast into the lake of fire.
Again, death, Hades, and unbelievers will be defeated.
Revelation 21: 1 Now I saw a new heaven and a new earth, for the first heaven and the first earth had passed away. Also there was no more sea. 2 Then I, John,[n] saw the holy city, New Jerusalem, coming down out of heaven from God, prepared as a bride adorned for her husband. 3 And I heard a loud voice from heaven saying, “Behold, the tabernacle of God is with men, and He will dwell with them, and they shall be His people. God Himself will be with them and be their God. 4 And God will wipe away every tear from their eyes; there shall be no more death, nor sorrow, nor crying. There shall be no more pain, for the former things have passed away.”
This passage says that death, sorrow, crying, and pain (the results of sin) will be gone.
I hope this helps.
Love in Christ,