Contradiction with Mark 11:9
Contradicts by emphasizing a larger crowd, not just disciples, shouting praises as Jesus enters Jerusalem.
Mark 11:9: And they that went before, and they that followed, cried, saying, Hosanna; Blessed [is] he that cometh in the name of the Lord:
Contradiction with John 12:13
Describes people taking palm branches and going out to meet Jesus, contrasting with only disciples praising in Luke 19:37.
John 12:13: Took branches of palm trees, and went forth to meet him, and cried, Hosanna: Blessed [is] the King of Israel that cometh in the name of the Lord.
Contradiction with Matthew 21:9
Has crowds both going before and following Jesus shouting praises, differing from just disciples in Luke 19:37.
Matthew 21:9: And the multitudes that went before, and that followed, cried, saying, Hosanna to the Son of David: Blessed [is] he that cometh in the name of the Lord; Hosanna in the highest.