WITNESS - (Gr. martyria) 1) One who testifies by word and deed. In the New Testament, the word is also rendered "martyr," a reference to those who give their lives for the gospel of Christ. Also, the Holy Spirit bears witness to the spirits of those who believe in Christ, that they belong to Him. (Rom. 8:16; Heb. 10:15; 12:1; 1 John 5:6 12; Rev. 11:3 12.) See also MARTYR.
2) (an appellation or Title of Jesus) "Behold, I have given him for a witness to the people, a leader and commander to the people." Isa 55:4
"And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in his own blood," Rev 1:5