'Prepare the Passover' in the Bible

'Also, the sons of Israel prepare the passover in its appointed season;

And Moses speaketh unto the sons of Israel to prepare the passover,

and they prepare the passover in the first month, on the fourteenth day of the month, between the evenings, in the wilderness of Sinai; according to all that Jehovah hath commanded Moses, so have the sons of Israel done.

And there are men who have been defiled by the body of a man, and they have not been able to prepare the passover on that day, and they come near before Moses, and before Aaron, on that day,

'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.