We don't actually know if the person who wrote the Gospel of John had a written copy of Thomas because we don't know exactly when it was written.
Sentiment: NEGATIVE
The learned are not agreed as to the time when the Gospel of John was written; some dating it as early as the year 68, others as late as the year 98; but it is generally conceded to have been written after all the others.
What's different about the Gospel of Thomas is that, instead of focusing entirely on who Jesus is and the wonderful works of Jesus, it focuses on how you and I can find the kingdom of God, or life in the presence of God.
I never really liked the Gospel of John because I never could find the humanity of Jesus in it. I thought it presented Jesus as a visitor from another planet; in addition, John's gospel is and has been interpreted as a document that fuels anti-Semitism in the church.
In the first gospel, Mark, the risen Christ appears physically to no one, but by the time we come to the last gospel, John, Thomas is invited to feel the nail prints in Christ's hands and feet and the spear wound in his side.
Of the sayings of Christ in the Synoptic Gospels that can be compared to those in the fourth Gospel, there are one or two which I venture to think can only have been recorded on the authority of St. John.
Where would Jesus be if no one had written the gospels?
The Gospels were written to present the life and teachings of Jesus in ways that would be appropriate to different readerships, and for that reason are not all the same. They were not intended to be biographies of Jesus, but selective accounts that would demonstrate his significance for different cultures.
Just because it's in print doesn't mean it's the gospel.
I'm a bit of a Doubting Thomas - always worrying about things.
The Gospel of Thomas claims to be the secret sayings of Jesus. There are 114 of them, so it says many things, but the central message is that Jesus is the one who reveals the divine light that brought the universe into being, and that you and I also reveal that light.