And we know that the Son of God has arrived, and that he has given us understanding, so that we may know the true God, and so that we may remain in his true Son. This is the true God, and this is Eternal Life
Other versions
King James Version
And we know that the Son of God is come, and hath given us an understanding, that we may know him that is true, and we are in him that is true, even in his Son Jesus Christ. This is the true God, and eternal life.English Standard Version
And we know that the Son of God has come and has given us understanding, so that we may know him who is true; and we are in him who is true, in his Son Jesus Christ. He is the true God and eternal life.New International Version
We know also that the Son of God has come and has given us understanding, so that we may know him who is true. And we are in him who is true--even in his Son Jesus Christ. He is the true God and eternal life.