Be careful not to bring in Jewish practices that have no place in the new covenant.
Likewise...
Be careful not to bring in Roman Catholic practices that have no foundation in the Book Rome assembled so long ago.
NOT TRUE! Jesus is Jewish. Peter=Jewish. Mathew=Jewish. John=Jewish. The people of God are the Jews. Esau was the father of the Edomites. The spirit of Edom is in the haters of the Jews today. God said in Malichi 2, Jacob I have loved, Esau I have hated. There are only 2 peoples today. The Jews and those that have been adopted into God's family, and Esau and his descendants. Esau even married the daughter of Ishmael along with two Canaanite women. The Canaanites were contaminated with the seed of demons that fell to earth and mated with the daughters of men. These demons have the seed of the Serpent and contaminated ALL flesh except Noah. His generations were perfect. Right after we read Genesis 6:1, we are introduced to Noah and the Flood to destroy the whole earth and all creatures in it. God made man in His image and now they resembled more of the devil than God. God destroyed all life save what was on the Ark, but the demon seed was probably brought on board with Noah's wife and certainly was with the 3 wives of Noah's sons as ALL flesh was corrupted. Nimrod was the first giant after the Flood. Nimrod was the first "type" of the Beast. He decided to build a tower to Heaven without God. God stopped that. Nimrod made himself "god" and his wife was the "mother of god". Their son was Tammuz and their daughter was Thyatira. Since Nimrod died, Tammuz was said to be Nimrod reincarnated. This was the genesis of the Babylonian religion. It took many forms in different places with Nimrod being Zeus, Jupiter, and dozens of other names. Isis, Ashteroth, Ishtar, and many others were Semiramis, Nimrod's wife.
This was the belief of Constantine of Rome fame. Easter speaks of eggs and bunnies because Semiramis was said to have landed on a river bank as an egg and started spring. She is the god of fertility. Easter and Passover are NOT THE SAME DAY. Any modern calendar will show this.
OTOH, Leviticus 23 clearly tells us the so called Jewish Feast days are actually GOD'S feast Days. Jesus said Moses wrote of Him. The Sabbath is Friday night to Saturday night, so Saturday was observed at the Synagogue. Jesus came to fulfill the Law, not to do away with it. A Christian should resemble more of a Messianic Jew than this made up mish mash of traditions made up by men. The Bible is very specific about what God wants from His people. Jesus Himself told us not to have repetitive repeated prayers. How many "Hail Mary's" and "Our Fathers" are you required to repeat? Jews are God's chosen people and Israel is the apple of God's eye. It is absolutely imperative to bless Israel and to pray for the peace of Jerusalem. Look at the haters of the Jews. Hittites, Canaanites, Jebusites, Hivites, Edomites,( the last Edomite was Herod the great that killed all Jewish babies under 2), and a dozen other "ites",and Philistines. Babylonians, Egyptians, Nazi's, Al Quida, and now Isis. ALL have fallen. but the Hebrews are still here and they will be here till the final day. God's last action on this planet will be to come rescue Israel surrounded by all the armies of the earth. When Jesus gets through, the blood will be up to a horses eye for 184 miles in Armageddon.
No Jesus did NOT come to make a new religion, He came to fulfill the Hebrew covenant. As Gentiles, we need to be with them. What you are saying sounds like "replacement theology". Christians have NOT replaced Israel in Scripture. We are "completed" Jews that have been adopted. The Old Testament is full of covenants made by God to His people FOREVER! He doesn't break His covenants, we do. Read Hosea and see what He thinks of His Bride.