Leftovers? When it came to the Passover Lamb there were to be no leftovers. There was no point in putting it away for later because the LORD had promised that they were leaving. What wasn’t eaten was to be burned. The only remaining evidence of the Lamb was to be the blood.
The Blood was a sign—to the LORD that those within had kept His Word and eaten the Passover Lamb.
It was the LORD’s Passover, a meal to be kept for Him through future generations. The LORD commanded the Israelites to do these things and to remember the sign of the blood.
Why don’t we celebrate the Passover? Why don’t we observe the other commandments that God gave the Israelites? Why don’t we rest on the seventh day, the Sabbath Day? Why don’t we follow the dietary commands that the LORD God gave to the Jews?
These commandments were given to the Israelites to be pictures of the coming Savior, Jesus. He has come!
These commandments are not required of us by God in the New Testament. In fact, dietary laws, worship on the Sabbath Day and other Jewish festivals are specifically removed by God in the New Testament. It is written (Colossians 2:16-17):
"So let no one judge you in food or in drink, or regarding a festival or a new moon or sabbaths, which are a shadow of things to come, but the substance is of Christ."
These things are fulfilled in Christ. We don’t need a Passover Lamb, for Jesus, the Lamb of God has come and His once-for-all sacrifice has set us free from bondage to sin and to death. He gives rest for our souls. He has made our entrance into the promised land of heaven a certainty.