If we receive the testimony of men, the testimony of God is greater; for the testimony of God is this, that He has testified concerning His Son. The one who believes in the Son of God has the testimony in himself; the one who does not believe God has made Him a liar, because he has not believed in the testimony that God has given concerning His Son. And the testimony is this, that God has given us eternal life, and this life is in His Son. He who has the Son has the life; he who does not have the Son of God does not have the life.
If three human witnesses were to testify unanimously in court, chances are we would believe them. (Of course there are always conspiracy theorists.) Throughout the course of our day most of us generally assume people are telling us the truth. The divine testimony of God is greater than the fallible testimony of man, and to not believe Jesus is the Son of God who gives eternal life then we consider God a liar.
There are numerous credible human witnesses who give testimony to the life, teaching, death, and resurrection of Christ, but we also have the greater witness of God the Father. If you have accepted this testimony and become a believer then you have the testimony of the Holy Spirit within you, affirming the truth and sounding an alarm at the sound of false teaching. The only way to true life, both on earth and eternal, is from God through His Son Jesus, and his grace visibly transforms lives even today!
On this Thanksgiving I thank God for His testimony to me and the peace He has brought to my life!