You, dear children, are from God and have overcome them, because the one who is in you is greater than the one who is in the world.
1 John 4:4
This verse is part of a larger passage in which John encourages believers to test the spirits to see whether they are from God or not. He warns them about false prophets who have gone out into the world and advises them to discern the truth by listening to the Spirit of God.
In this particular verse, John is reminding his readers that they have the Holy Spirit living inside of them, and that this Spirit is greater than anything in the world that may oppose them. The “them” referred to in this verse could be false prophets, or any kind of opposition or challenge that believers may face.
Overall, this verse is meant to be an encouragement to believers, reminding them that they have the power of the Holy Spirit on their side and that they can overcome any obstacle through the strength that God provides.