Why they are heresies is because these books like the infancy of jesus christ are written 400 years after it happend... making them clear inventions.
Just as most coptic, gnostic or heretic gospels are from a couple of centuries after Jesus and from countries other then Israel and never show any jewish knowledge or include hermetism and local beliefs of the country in wich it is made.
all, and each and every gospel has been studied in full and refuted or confirmed...
you wanna hear why the gospels wich Muhammed stole his stories from are heresies?
okay, i will explain them to you beginning with the first two, why they are not canonical gospels.
The stolen story of the Palm tree is found in the Pseudo Gospel of Matthew:
- It's made in the 5th Century AD, 400 years after Jesus' birth!
- Matthew is highly unlikely to have lived 400 years
- It's an obvious fake
The stolen story of the Clay Birds is found in the Thomas Gospel of the infancy of Jesus Christ:
- The majority of the traditions contained in the Infancy Gospel of Thomas date to the middle of the second century.
- The Infancy Gospel of Thomas is clearly not the work of the disciple of Jesus mentioned in all four canonical gospels. Thomas is not only not named as author in the earliest manuscripts, but the text was also briefly ascribed to James.
- The text was not written by any first century writer because the author shows virtually no knowledge of jewish life in the time of Jesus
- Also, the text could not have originated in the first century because it is dependent on the Gospel of Luke for the story of Jesus in the temple at age twelve.
Not only this, these gospels you wanna see as apocryphal are probably even more emphasizing on Jesus divine Godhood then the canonical gospels. surely you don't wanna see them as from Allah to you, 'cause it would mean Shirk for you...