Witnessing to Jehovah’s Witnesses requires understanding their beliefs and the biblical truths that counter them. Jehovah’s Witnesses hold beliefs that significantly differ from the Bible’s teaching. They deny the Trinity, claiming that God, Jesus, and the Holy Spirit are separate “gods” (Matthew 28:19). They claim that Jesus is merely Michael the Archangel, not fully God (Matthew 16:15-16; John 10:30). The JWs also assert that the Holy Spirit is an impersonal force rather than a divine Person (Acts 5:3-4). They teach that salvation depends on works, obedience to the Watchtower organization, and surviving Armageddon, rather than on faith in Christ’s sacrificial death and resurrection (Ephesians 2:8-9; Romans 3:23-25). They also misread Revelation 7:4 and believe only a limited “remnant” of 144,000 will go to heaven, while others aim for a paradise Earth. They teach that Jesus began ruling invisibly in 1914. In contrast, the Bible clearly teaches that Jesus is fully God and fully human (John 1:1,14; Colossians 2:9), His death atones for all sins (Romans 3:25; 1 John 2:2), salvation is by grace through faith, and the Holy Spirit is God’s active, personal presence in believers’ lives (John 14:16-17; Acts 1:8). Understanding these differences is key to witnessing with clarity and truth. Effective witnessing also involves “speaking the truth in love” (Ephesians 4:15), sharing personal testimony, and prayerfully guiding conversations toward Jesus and His sufficiency for salvation.
Understanding a Jehovah’s Witnesses’ theology is important in witnessing to them. For example, Jehovah's Witnesses believe the idea of the Trinity is pagan. They misrepresent the doctrine as tri-theism. They do agree that the Father and Son are two Persons but do not understand how three Persons can be One God. Jehovah's Witnesses teach that Jesus was created (Arianism) by God and is a little god. So in their view, there are two gods—a Big God and a little god. According to Jehovah's Witnesses, Jesus was once Michael the archangel and when He died on the cross He was not resurrected bodily, but as a spirit creature. They say the Holy Spirit is not a Person but is Jehovah's force or energy.
Jehovah's Witnesses say that Jesus' death atoned only for Adam's sin and that our deaths pay the penalty for our sins. Only some of those living today can claim to have a heavenly hope with Jesus as their mediator as part of a "remnant" of the 144,000. The others say they want to live forever on a paradise earth (Restorationism). If they can live obediently until the end of the Millennial Reign of Jesus, they believe they will earn the right to be declared righteous. To survive Armageddon, they must obey the Watchtower Society and its Governing Body, who they say is appointed by Jehovah. The JW Governing Body says that Jesus began to rule Earth from heaven in 1914 as an invisible "second presence." They know this due to their "spiritual eyes of discernment." They teach that Jesus will not return to Earth, but will rule with 144,000 from heaven. Jehovah's Witnesses have no assurance of salvation, yet continue to strive in hopes that they will earn life on a paradise earth.
Foundational to orthodox Christianity is the divinity of Jesus. His divinity is what makes His death on the cross the atonement for everyone who calls on His Name and believes. Those who do—Christians—have the assurance of salvation (Romans 10:9) and are indwelt by the Holy Spirit—the third member of the Trinity. They do not have to keep striving for salvation or some future hope of acceptance by God.
As with anyone Christians share the gospel with, an attitude of love and compassion must be maintained. Share your personal testimony and help Jehovah's Witnesses to understand the deception they are under. Be careful, though: Jehovah's Witnesses often invite people to participate in their "Bible study." For such studies, they use the New World Translation of what they call the Bible, which has been altered to parallel their theology, including removal of any passage referencing the deity of Jesus. They generally will not read extrabiblical content not produced by Watchtower, nor will they easily agree to attend a church service. Productive conversations about doctrine might not be possible until a Jehovah's Witness begins to doubt his faith in The Watchtower Society. Show them that you care about their eternal destiny and direct conversation to the person of Christ and the need for faith in Him.
Jehovah's Witnesses are usually surprised to find those who genuinely love the Lord, demonstrate the fruit of the Holy Spirit, and use the Bible as the basis of faith. We must continue to stress our reliance upon Jesus for salvation. Most importantly, we must pray for Jehovah's Witnesses.