We can only find it in the four Gospels.
Why would you trust Matthew who says, 'Jesus said this' but not trust Paul who mostly says, 'Jesus told me to say this'??? Especially since Peter calls Paul's writing scripture???
Why would you trust Matthew who says,
We now have the Gospel of Jesus so where would we go to read the Gospel except where it is recorded?
The people who are trying to change it from the Gospel of Jesus to the Gospel of Paul or any one else is the only problem i see.