How would you prove where you were yesterday? You could give an account of the TV show you watched or present the receipts from the store where you shopped. You may simply point to those people who were with you and can verify what they saw you doing. This is the legal maxim for proof and the standard of evidence. Fact is proved certain by as few as two or three witnesses observing the same event. These witnesses prove that by honestly examining their accounts for agreement then evidence affirms the facts upon two or more essential details, and these accounts are found false upon two or three explicit contradictions. Thus, testimonial evidence reveals the facts. This principle was useful for legal reasons and was adopted into the ancient courts in Rome, Egypt, Greece, India, Crete, and the ancient republic of Israel under the Mosaical Law. Passed from English Common Law unto the United States, the U.S. Constitution states, “No Person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt Act, or on Confession in open Court” (Art. 3, Sect. 3). The Bible attributes the origin of this maxim to God.
How can Christians account for what Jesus did in His life? Why are there four Gospels? Matthew and John testified of what they saw and heard. Mark and Luke wrote and verified the testimonies of other eyewitnesses. Each Gospel affirmed the ministry, the death, the burial, and the resurrection of Jesus (Luke 1:1–3; John 20:31; 21:24; 1 John 1:1–4; 2 Pet 1:16–18). These written testimonies remain for an honest examination before all people throughout the last twenty centuries. Are these Gospels consistent proving that Jesus is the Messiah? Why not listen to Jesus Himself? Jesus proved that He is the Son of God upon the witnesses of John the Baptist’s preaching, His miracles, and the predictions of the Scriptures (John 5:30–47; 7:17; 8:17).
Therefore with the evidence, show that Jesus is the Christ, turn to the words of Jesus for all things. There are many more things that believers can know that are outside of the witness of humankind, because Scripture shows that Jesus is God, the Messiah (Isa 9:6–7). For instance, Jesus testified to the Genesis account for the six days of the Creation of the universe (Matt 19:4–9, Mark 10:5–9). Within these same words, Jesus affirmed the institution of marriage which is between one man and one woman. He testified that His words are spirit and life (John 6:63), so let us rest in the peace that only He can promise (Matt 11:28–30). Let us turn to the words of Christ, His apostles, and prophets in the New Testament whose testimonies prove that God’s Word is true, inerrant, and reliable.
The Breath of God 
The legal standard you propose has no bearing on history or science. For instance, in the famous Hopkinsville goblin case, seven people gave exactly the same details about the little green men that menaced them on the night of August 21, 1955. Seven people… the adult and juvenile members of the Sutton family and an adult guest, one Billy Ray Taylor. Are we to accept that Aliens visited Hopkinsville in 1955?
The incident meets your criteria. Do you accept it?
You are getting close. Let us examine their accounts and see if there are 2 or more contradictions.
Your thinking excludes history and science. According to you, police reports cannot stand and journalism has no way to be proved. You should have learned about primary sources in middle school if not elementary school.
How would any scientist report his observations without giving his eyewitness account? How could any astronomer affirm occurrences in the cosmos without proof? How would a biologist confirm one’s discoveries without witnessed reports?
Can you even explain how you would prove anything? Don’t remind me of John Locke’s (another Creationists) reference to the 5 senses. These 5 senses bear witness.