New King James Version
I, John, both your brother and companion in the tribulation and kingdom and patience of Jesus Christ, was on the island that is called Patmos for the word of God and for the testimony of Jesus Christ.

King James Bible
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.

American Standard Version
I John, your brother and partaker with you in tribulation and kingdom and patience which are in Jesus, was in the isle that is called Patmos, for the word of God and the testimony of Jesus.

Berean Study Bible
I, John, your brother and partner in the tribulation and kingdom and perseverance that are in Jesus, was on the island of Patmos because of the word of God and my testimony about Jesus.

Douay-Rheims Bible
I John, your brother and your partner in tribulation, and in the kingdom, and patience in Christ Jesus, was in the island, which is called Patmos, for the word of God, and for the testimony of Jesus.

English Revised Version
I John, your brother and partaker with you in the tribulation and kingdom and patience which are in Jesus, was in the isle that is called Patmos, for the word of God and the testimony of Jesus.

World English Bible
I John, your brother and partner with you in oppression, Kingdom, and perseverance in Christ Jesus, was on the isle that is called Patmos because of God's Word and the testimony of Jesus Christ.

Young's Literal Translation
I, John, who also am your brother, and fellow-partner in the tribulation, and in the reign and endurance, of Jesus Christ, was in the isle that is called Patmos, because of the word of God, and because of the testimony of Jesus Christ;

Revelation 1:9 Additional Translations ...