After Jesus brings Lazarus back from the dead, three men run to a castle on a hill to announce the miracles that Jesus has performed. In the long shot, the first man runs up to the castle entrance into the shade. The shade disappears and reappears between shots.
At the beginning, a figure is shown walking in the manger. The lantern brightly lights the ox in the background as the person passes. However, the one holding the lamp remains in full shadow.
The film has James and Matthew as brothers which is incorrect. James and John are brothers (sons of Zebedee) and are two of the first Disciples chosen by Jesus.
Differences from the source material are not considered to be goofs, especially when relating to dramatic decisions. Many historical inaccuracies also get a pass, especially when caused by reliance on religious and/or artistic traditions.
When King Herod and his courtiers move around his throne room, the set floors sound distinctly like wood and plaster, instead of the solid stone they're supposedly made of.
When the crucifixion is show at a distance, the sight and sound of the mallet blows arrive at the same time. At the distance shown, the sound would be slightly, but perceptibly, delayed.
When the Roman Centurion (John Wayne) utters his line "Truly, this man was the son of God", with close speculation, his lips aren't moving (due to it being a voiceover).
Throughout the film there are shots of snow on the ground and snow on the mountains of Utah. Israel rarely gets any snow.
When King Herod (Jose Ferrer) is asking for a report about Jesus, King Herod said, "What can you tell me about a nam mamed Jesus...", a dyslexic pronunciation of "....man named...."