Why? Because Passover was given by God to the Israelites for them to observe and remember how He passed over the houses of the Israelites in Egypt and instead struck the Egyptians, as we can read in the Old Testament book of Exodus in the Bible. (See Exodus 12:1-51)

The Lord told the Jews that, “this is a day to remember. Each year, from generation to generation, you must celebrate it as a special festival to the Lord. This is a law for all time.” Exodus 12:14 NLT

But when Jesus Christ, our sacrificial lamb, died on the cross for our sins, He ended the system of law with its commandments and regulations! He made peace between Jews and Gentiles by creating in Himself one new people from the two groups. Together as one body, Christ reconciled both groups to God by means of His death on the cross, and our hostility toward each other was put to death! (See Ephesians 2:15-16)

Now in the New Testament Covenant, Passover has been replaced with the Lord’s Supper, also called Communion!

The apostle Paul gave the following instructions to the church concerning the celebration of the Lord’s Supper for the followers of Jesus Christ:

“For I pass on to you what I received from the Lord Himself. On the night when He was betrayed, the Lord Jesus took some bread and gave thanks to God for it. Then He broke it in pieces and said, “This is My body, which is given for you. Do this in remembrance of Me.” In the same way, He took the cup of wine after supper, saying, “This cup is the new covenant between God and His people—an agreement confirmed with My blood. Do this in remembrance of Me as often as you drink it.” For every time you eat this bread and drink this cup, you are announcing the Lord’s death until He comes again.” 1. Corinthians 11:23-26 NLT

This is exactly what the first church was doing in the Book of Acts:

“They worshiped together at the Temple each day, met in homes for the Lord’s Supper, and shared their meals with great joy and generosity— all the while praising God and enjoying the goodwill of all the people.” Acts 2:46-47 NLT

Contrary to what many religious people say, Christians are absolutely not obligated to observe Passover. As a matter of fact the New Testament of the Bible says:

“Don’t let anyone condemn you for what you eat or drink, or for NOT celebrating certain holy days or new moon ceremonies or Sabbaths! For these rules are only shadows of the reality yet to come. And Christ Himself is that reality!” Colossians 2:16-17 NLT