KJV:
He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made him a liar; because he believeth not the record that God gave of his Son.
NASB:
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.
KJV:
And this is the record, that God hath given to us eternal life, and this life is in his Son.
NASB:
And the testimony is this, that God has given us eternal life, and this life is in His Son.
KJV:
Who bare record of the word of God, and of the testimony of Jesus Christ, and of all things that he saw.
NASB:
who testified to the word of God and to the testimony of Jesus Christ, even to all that he saw.
KJV:
I John, who also am your brother, and companion in tribulation, and in the kingdom and patience of Jesus Christ, was in the isle that is called Patmos, for the word of God, and for the testimony of Jesus Christ.
NASB:
I, John, your brother and fellow partaker in the tribulation and kingdom and perseverance which are in Jesus, was on the island called Patmos because of the word of God and the testimony of Jesus.
KJV:
And when he had opened the fifth seal, I saw under the altar the souls of them that were slain for the word of God, and for the testimony which they held:
NASB:
When the Lamb broke the fifth seal, I saw underneath the altar the souls of those who had been slain because of the word of God, and because of the testimony which they had maintained;
KJV:
And when they shall have finished their testimony, the beast that ascendeth out of the bottomless pit shall make war against them, and shall overcome them, and kill them.
NASB:
When they have finished their testimony, the beast that comes up out of the abyss will make war with them, and overcome them and kill them.
KJV:
And they overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death.
NASB:
"And they overcame him because of the blood of the Lamb and because of the word of their testimony, and they did not love their life even when faced with death.
KJV:
And the dragon was wroth with the woman, and went to make war with the remnant of her seed, which keep the commandments of God, and have the testimony of Jesus Christ.
NASB:
So the dragon was enraged with the woman, and went off to make war with the rest of her children, who keep the commandments of God and hold to the testimony of Jesus.
KJV:
And I fell at his feet to worship him. And he said unto me, See thou do it not: I am thy fellowservant, and of thy brethren that have the testimony of Jesus: worship God: for the testimony of Jesus is the spirit of prophecy.
NASB:
Then I fell at his feet to worship him. But he said to me, "Do not do that; I am a fellow servant of yours and your brethren who hold the testimony of Jesus; worship God. For the testimony of Jesus is the spirit of prophecy."