Numbers 9:10

7 and those men say unto him, `We are defiled by the body of a man; why are we withheld so as not to bring near the offering of Jehovah in its appointed season, in the midst of the sons of Israel?`

8 And Moses saith unto them, `Stand ye, and I hear what Jehovah hath commanded concerning you.`

9 And Jehovah speaketh unto Moses, saying,

10 `Speak unto the sons of Israel, saying, Though any man is unclean by a body or in a distant journey (of you or of your generations), yet he hath prepared a passover to Jehovah;

11 in the second month, on the fourteenth day, between the evenings they prepare it; with unleavened and bitter things they eat it;

12 they do not leave of till morning; and a bone they do not break in it: according to all the statute of the passover they prepare it.

13 `And the man who is clean, and hath not been on a journey, and hath ceased to prepare the passover, even that person hath been cut off from his people; because the offering of Jehovah he hath not brought near, in its appointed season, that man doth bear his sin.