How do we know God's judgment on false teachers is true?

The certainty of God's judgment against false teachers is fortified in 2 Peter 2:3, where it explicitly states that their judgment lingers not, and their destruction is imminent. The presence of false teachers among believers leads many to follow pernicious and destructive ways, causing the truth of the gospel to be disparaged. In light of this, God’s judgment is not only past and future, but it is currently active, promising to hold false prophets accountable for leading His people astray. This realization urges believers to take the teachings they encounter with utmost seriousness.