Revelation 20:8-10 (KJV)
8 And shall go out to deceive the nations which are in the four quarters of the earth, Gog and Magog, to gather them together to battle: the number of whom is as the sand of the sea.
9 And they went up on the breadth of the earth, and compassed the camp of the saints about, and the beloved city: and fire came down from God out of heaven, and devoured them.
10 And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.
Be vigilant to know God's Word in the Bible, lest you be found deceived by the many false teachers, prophets, and churches.
There are many people that appear religious, but on the inside they are really wolves in sheep's clothing. Do not be deceived!
One day every false teacher will be found out and God's judgements will be upon them, as they are thrown into the lake of fire.