New Living Translation
And this is the way to have eternal life—to know you, the only true God, and Jesus Christ, the one you sent to earth.

American Standard Version
And this is life eternal, that they should know thee the only true God, and him whom thou didst send, even Jesus Christ.

Berean Study Bible
Now this is eternal life, that they may know You, the only true God, and Jesus Christ, whom You have sent.

Douay-Rheims Bible
Now this is eternal life: That they may know thee, the only true God, and Jesus Christ, whom thou hast sent.

English Revised Version
And this is life eternal, that they should know thee the only true God, and him whom thou didst send, even Jesus Christ.

King James Bible
And this is life eternal, that they might know thee the only true God, and Jesus Christ, whom thou hast sent.

World English Bible
This is eternal life, that they should know you, the only true God, and him whom you sent, Jesus Christ.

Young's Literal Translation
and this is the life age-during, that they may know Thee, the only true God, and him whom Thou didst send -- Jesus Christ;

John 17:3 Additional Translations ...