[S I M T A N]

I quoted the verse. And this is eternal life, that they know you, the only true God, and Jesus Christ whom you have sent. - John 17:3

Is that a lie? 

Jesus was saying the Father is the only true God, but He didn't say only the Father is God. See the difference? The Son is also truly God. There are three persons in the one true and living God: the Father, the Son, and the Holy Spirit. They're the same in substance, equal in power and glory. "The grace of the Lord Jesus and the love of God and the fellowship of the Holy Spirit be with you all (2 Cor 13:14). Men do not reject the Bible because it contradicts itself, but because it contradicts them.