"The "Testimony" of God is His Will, established in His physical Laws and spiritual and moral Commandments, expressed by the Patriarchs and Prophets in the Holy Scriptures, communicated to the nation of Israel, and given to the people to achieve a life of righteousness leading to Eternal Life.    

"The "testimony" of Jesus Christ is the example of His holy way of life and the preaching of His Teachings of the Will of God, which has opened to the nations the possibility of salvation from the bondage of sin and its consequences by its constant fulfillment. 

"The "testimony" of man is his perception, his understanding of the Word of God's Will, its fulfillment, and the good news he communicates to others.

It is also a person's way of life, which testifies to his worldview.

Negative Meaning

"Testimony" false is a false perception, a representation of God's Will, His Word, which is willfully or unintentionally propagated by a person.

Translated with DeepL.com (free version)