AMPC
And we [have seen and] know [positively] that the Son of God has [actually] come to this world and has given us understanding
and insight [progressively] to perceive (recognize)
and come to know better
and more clearly Him Who is true; and we are in Him Who is true—in
His Son Jesus Christ (the Messiah). This [Man] is the true God and Life eternal.
YLT
and we have known that the Son of God is come, and hath given us a mind, that we may know Him who is true, and we are in Him who is true, in His Son Jesus Christ; this one is the true God and the life age-during!
WE
We know that the Son of God has come. He has given us a heart to know him who is true. We belong to him who is true, because we belong to his Son Jesus Christ. He is the true God. He has the life that will live for ever
VOICE
We also can be sure of the fact that the Son of God has come and given us a mind so that we may know Him as
the embodiment of all that is true. We live in this truth, in His Son Jesus, the Anointed One. He is the True God and eternal life.
TLV
And we know that
Ben-Elohim has come and given us insight, so that we may know Him who is true—and we are in Him who is true, in His Son
Yeshua the Messiah. This One is the true God and eternal life.
RGT
But we know that the Son of God has come and has given us a mind to know Him Who is true. And we are in Him Who is true; in His Son Jesus Christ. The same is that very God and that Eternal Life.
NIV
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 by being in his Son Jesus Christ. He is the true God and eternal life.
TLB
And we know that Christ, God’s Son, has come to help us understand and find the true God. And now we are in God because we are in Jesus Christ his Son, who is the only true God; and he is eternal Life.
GNV
But we know that that Son of God is come, and hath given us a mind to know him, which is true, and we are in him that is true,
that is, in that his Son Jesus Christ, the same is that very God, and that eternal life.