John 17:3

3 Now this is eternal life: that they know you, the only true God, and Jesus Christ, whom you have sent.

Read John 17:3 Using Other Translations

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