In a world filled with spiritual voices and teachings, believers need biblical discernment to distinguish truth from deception. The apostle John provides a clear test in 1 John 4:1-6: examine what any teaching says about Jesus Christ. True spiritual teaching confesses that Jesus came in the flesh - fully God and fully human - while false teaching denies this essential truth. As believers, we already possess the Holy Spirit who gives us discernment to recognize the spirit of antichrist that opposes the true Jesus. By staying close to Christ through His Word and prayer, we can develop the spiritual discernment needed to navigate today's deceptive spiritual landscape.