Why don't Catholics celebrate Jewish holidays?

[Stephen_T]

I would like to know why Catholics do not celebrate traditional Jewish holidays such as Rosh Hashanah or Yom Kippur. If we believe in the same Old Testament, wouldn’t Jews and Catholics celebrate the same holidays (Old Testament holidays)?

 

[Michelle_Arnold]

Holidays, in the ancient world, were not just annual celebrations but serious religious obligations. The word *holiday *is, in fact, a contraction of the words holy day. The Jewish holidays were and are serious religious obligations for the Jewish people. And that is the reason that Christians do not celebrate the Jewish holidays. Those religious obligations are no longer binding upon Christians once Christ fulfilled the Law and gave to Christians the new covenant.

And you, who were dead in trespasses and the uncircumcision of your flesh, God made alive together with him, having forgiven us all our trespasses, having canceled the bond which stood against us with its legal demands; this he set aside, nailing it to the cross. He disarmed the principalities and powers and made a public example of them, triumphing over them in him. Therefore let no one pass judgment on you in questions of food and drink or with regard to a festival or a new moon or a sabbath. These are only a shadow of what is to come; but the substance belongs to Christ (Col. 2:13-17).

Christians have their own religious obligations, given to them by the Church Christ gave us to teach in his name, and those obligations include Christian holy days of obligation (e.g., Christmas, All Saints Day), but they do not include Jewish holy days because those holy days are only binding in conscience upon those Jews who sincerely believe that God requires them to continue to follow the Law given to Moses.