Contradiction with Jeremiah 10:2-4
These verses warn against following the customs of the heathen, including cutting a tree and decorating it, which may contrast with celebrating the birth of Christ.
Jeremiah 10:2-4: Thus saith the LORD, Learn not the way of the heathen, and be not dismayed at the signs of heaven; for the heathen are dismayed at them.
Contradiction with Matthew 2:16
King Herod's violent reaction to the birth of Jesus contrasts with the peaceful glorifying and praising by the shepherds in Luke 2:20.
Matthew 2:16: Then was fulfilled that which was spoken by Jeremy the prophet, saying,
Contradiction with Mark 15:32
The mocking of Jesus during his crucifixion contrasts with the glorification and praise of Jesus by the shepherds in Luke 2:20.
Mark 15:32: Let Christ the King of Israel descend now from the cross, that we may see and believe. And they that were crucified with him reviled him.
Contradiction with John 1:10-11
Jesus being unrecognized and not received by his own people contrasts with the shepherds glorifying and praising God for Jesus' birth.
John 1:10-11: He was in the world, and the world was made by him, and the world knew him not.
Contradiction with 1 Timothy 4:7
The exhortation to avoid profane and old wives' fables may seem at odds with the joyful storytelling of Jesus' birth in Luke 2.
1 Timothy 4:7: But refuse profane and old wives' fables, and exercise thyself [rather] unto godliness.