13 But if anyone who is ceremonially clean and not on a journey fails to celebrate the Passover, they must be cut off from their people for not presenting the LORD’s offering at the appointed time. They will bear the consequences of their sin.

Read Numbers 9:13 Using Other Translations

But the man that is clean, and is not in a journey, and forbeareth to keep the passover, even the same soul shall be cut off from among his people: because he brought not the offering of the LORD in his appointed season, that man shall bear his sin.
But if anyone who is clean and is not on a journey fails to keep the Passover, that person shall be cut off from his people because he did not bring the LORD's offering at its appointed time; that man shall bear his sin.
“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.