How can we identify false prophets?

TL;DR:

False prophets can look convincing, but if their message contradicts the Bible or distorts who Jesus is, their fruit will eventually expose them. The truth of God's Word will help us spot the lie.

False prophets are nothing new—Israel was warned to reject those who spoke “visions of their own minds” (Jeremiah 23:16; Deuteronomy 13:1–3; 18:20–22), Jesus cautioned that many would come with convincing signs (Matthew 7:15–20; 24:24), and the early church had to guard against distorted doctrine (Acts 20:29–30; Galatians 3).

Though they may appear persuasive or even miraculous, the teaching of false prophets misrepresents God and contradicts the gospel of grace (Ephesians 2:8–9; Romans 3:23).

Scripture calls believers to vigilance, not fear: “test the spirits” (1 John 4:1), examine their fruit (Matthew 7:15–20), and measure every claim against God’s Word like the Bereans did (Acts 17:10–11). Relying on the Holy Spirit and rightly handling the word of truth (2 Timothy 2:15), Christians grow in discernment—because the more clearly we know the true Christ, the more quickly we recognize a counterfeit.

from the old testament

Deuteronomy 13:1–3 reveals characteristics of false prophets, which includes someone who encourages idol worship.
In Deuteronomy 18:20–22, God highlights the seriousness of false prophecy, making it clear that if someone claims to say a word with His authority but it doesn’t come true, that person is a false prophet and must die.
In Jeremiah 23:16, God warns His people to not listen to the words of false prophets who fill them with “vain hopes,” adding that they “speak visions of their own minds, not from the mouth of the Lord.”

from the new testament

Jesus taught that someone’s extraordinary acts do not prove a prophecy is biblical or true. In fact, He warned of such seeming "miracles" during the end times (Matthew 24:24). Believers can tell false prophets by their fruits (Matthew 7:15-20).
Peter echoed Christ’s warning in 2 Peter 2, cautioning believers that just as false prophets arose among Israel, false teachers would arise within the church—secretly introducing destructive heresies, denying the Master who bought them, and exploiting others with deceptive words (2 Peter 2:1–3), a sober reminder that Jesus’ warning in Matthew 7:15–20 remains urgent for every generation.
Even within the church we must be on guard against false teachings (Acts 20:29–30), including false prophets. Many of Paul's letters deal with correcting heretical teachings that had already crept into the church, such as dishonoring the Lord's supper and returning to works-based salvation (1 Corinthians 11:17-22; 1 Timothy 1:3-6; Galatians 3).
The apostle John wrote, "Beloved, do not believe every spirit, but test the spirits to see whether they are from God, for many false prophets have gone out into the world" (1 John 4:1).
Some signs of false prophets/teachers are their views of Jesus—e.g., His divinity (John 1:1), incarnation and virgin birth (Luke 1:34; 1 John 2:22), crucifixion (John 19:15-30), and resurrection (Mark 16:1-8; 1 Corinthians 15:19).
Other heresies to be alert to are the denial of life after death (Matthew 25:46; 2 Corinthians 5:8) and that hell exists (Matthew 22:13), denial of the Trinity (Matthew 3:16-17), and the claim that we can earn our salvation (Ephesians 2:8-9).
Some preach that human beings are good enough without God, but this is false prophecy since “all have sinned and fall short of the glory of God” (Romans 3:23).

implications for today

We all appreciate a "heads up"—whether it's one teen sibling to another about a parent coming home early or one coworker to another about the boss' mood that morning. Many in Scripture have given believers today a "heads-up" about false prophets. Jesus told us that they would be more prevalent during end times (Matthew 24:24). Peter tells us to "be watchful" of Satan (1 Peter 5:8), who can cleverly use someone who looks innocent to fulfill his evil purposes of distorting God's word.

What can protect us? An abiding relationship with Jesus and cherishing His Word in our hearts. The Bereans in Acts 17:10-11 modeled the right behavior: They didn't immediately accept Paul’s teachings, but tested them against the Scriptures. Similarly, we should test what we hear from “prophets” with what the Bible actually says.

Our aim should be to follow Paul’s instruction to Timothy: “Do your best to present yourself to God as one approved, a worker who has no need to be ashamed, rightly handling the word of truth” (2 Timothy 2:15). The more we know the truth, the easier we can detect lies.

understand

False teachers and prophets are prevalent in society so we must be spiritually on guard.
The best way to detect the lies of a “prophet” is to know the truth of Scripture.
Believers have the Holy Spirit living inside of us so we can test spirits and detect false prophets.

reflect

When you hear a compelling teacher, how intentionally do you test their message against Scripture?
How well do you know the core truths about Jesus so you can recognize when they are being distorted?
How are you cultivating discernment through regular time in God’s Word and dependence on the Holy Spirit?

engage

What teachings today most subtly undermine the gospel of grace, and why are they appealing?
How can we create a culture where testing doctrine (Acts 17:10–11) is encouraged without fostering cynicism or suspicion?
How can we lovingly guide those who follow a false prophet to the truth of God’s Word?