And this is the will of the One having sent Me, that everyone seeing the Son and believing into Him should have everlasting life; and I will raise him up at the last day.
But for this reason I received mercy, that in me first Jesus Christ might show forth all long-suffering, for an example to the ones being about to believe on Him unto everlasting life.
The one believing into the Son of God has the witness in himself. The one not believing God has made Him a liar, because he has not believed into the witness which God has witnessed concerning His Son.
And we know that the Son of God has come, and He has given to us an understanding that we may know the True One, and we are in the True One, in His Son Jesus Christ. This is the true God and the life everlasting.