What does the Bible say about testing the spirits?

In 1 John 4:1, the Apostle John urges believers to 'try the spirits whether they are of God,' emphasizing the importance of discernment in a world filled with false prophets. This directive is vital because many voices claim to speak for God, and it is essential to discern the true from the false. The testing of spirits aligns with the believer's responsibility to evaluate teachings against the truth of Scripture and the person of Jesus Christ. John's criterion for determining if a spirit is from God is whether it confesses that Jesus Christ has come in the flesh, which links the Holy Spirit's work with the acknowledgment of Christ's incarnation.