6 But some of the men had been ceremonially defiled by touching a dead body, so they could not celebrate the Passover that day. They came to Moses and Aaron that day 7 and said, "We have become ceremonially unclean by touching a dead body. But why should we be prevented from presenting the Lord 's offering at the proper time with the rest of the Israelites?" 8 Moses answered, "Wait here until I have received instructions for you from the Lord ." 9 This was the Lord 's reply to Moses. 10 "Give the following instructions to the people of Israel: If any of the people now or in future generations are ceremonially unclean at Passover time because of touching a dead body, or if they are on a journey and cannot be present at the ceremony, they may still celebrate the Lord 's Passover. 11 They must offer the Passover sacrifice one month later, at twilight on the fourteenth day of the second month. They must eat the Passover lamb at that time with bitter salad greens and bread made without yeast. 12 They must not leave any of the lamb until the next morning, and they must not break any of its bones. They must follow all the normal regulations concerning the Passover. 13 "But those who neglect to celebrate the Passover at the regular time, even though they are ceremonially clean and not away on a trip, will be cut off from the community of Israel. If they fail to present the Lord 's offering at the proper time, they will suffer the consequences of their guilt.

Matthew Henry's Commentary on Numbers 9:6-13

Commentary on Numbers 9:1-14

(Read Numbers 9:1-14)

God gave particular orders for the keeping of this passover, and, for aught that appears, after this, they kept no passover till they came to Canaan, Joshua 5:10. It early showed that the ceremonial institutions were not to continue always, as so soon after they were appointed, some were suffered to sleep for many years. But the ordinance of the Lord's Supper was not thus set aside in the first days of the Christian church, although those were days of greater difficulty and distress than Israel knew in the wilderness; nay, in the times of persecution, the Lord's Supper was celebrated more frequently than afterward. Israelites in the wilderness could not forget the deliverance out of Egypt. There was danger of this when they came to Canaan. Instructions were given concerning those who were ceremonially unclean, when they were to eat the passover. Those whose minds and consciences are defiled by sin, are unfit for communion with God, and cannot partake with comfort of the gospel passover, till they are cleansed by true repentance and faith. Observe with what trouble and concern these men complained that they were kept back from offering to the Lord. It should be a trouble to us, when by any occasion we are kept back from the solemnities of a sabbath or a sacrament. Observe the deliberation of Moses in resolving this case. Ministers must ask counsel of God's mouth, not determine according to their own fancy or affection, but according to the word of God to the best of their knowledge. And if, in difficult cases, time is taken to spread the matter before God by humble, believing prayer, the Holy Spirit assuredly will direct in the good and right way. God gave directions in this case, and in other similar cases, explanatory of the law of the passover. As those who, against their minds, are forced to absent themselves from God's ordinances, may expect the favours of God's grace under their affliction, so those who, of choice, absent themselves, may expect God's wrath for their sin. Be not deceived: God is not mocked.