The following Video is about John 14:21 a very important scripture when witnessing to Jehovah's Witnesses, it's quick, thorough, and one argument they have trouble explaining!

This is a GREAT explanation of the Michael / Jesus / Michael doctrine of the Jehovah's Witnesses.
It is well researched and well written and laid out to make it understandable. It does get involved but in the end, if you know this well, it is a WONDERFUL approach to asking very good thought provoking questions.
It addresses the stale and standard "Few of Their Favorite Things" arguments when denying the Deity of Christ.
Video Source YouTube Channel 'AcademyApologia' Please Remember to Like and Subscribe.

The Watchtower’s denial of the Trinity and Christ’s Deity naturally affects their view of the atonement. They teach that the main reason Jesus came to earth was to vindicate the name of Jehovah and reverse Adam’s fall.

The Watchtower: Roots, Shoots, and Those in Cahoots - A history of the Watchtower. Watch the video on History of the Watchtower.

In this handout photo released by Courtesy of Jehovah's Witnesses, Dennis Christensen, who was leading the local Bible reading, is escorted from a court room in Oryol, Russia, Wednesday, Feb. 6, 2019. A regional court in western Russia on Wednesday sentenced a Danish Jehovah’s Witness to six years in prison, in arguably the most severe crackdown on religious freedom in Russia in recent years.