Leviticus 27:28-34

28 But nothing which a man has given completely to the Lord, out of all his property, of man or beast, or of the land which is his heritage, may be given away or got back in exchange for money; anything completely given is most holy to the Lord.
29 Any man given completely to the Lord may not be got back: he is certainly to be put to death.
30 And every tenth part of the land, of the seed planted, or of the fruit of trees, is holy to the Lord.
31 And if a man has a desire to get back any of the tenth part which he has given, let him give a fifth more.
32 And a tenth part of the herd and of the flock, whatever goes under the rod of the valuer, will be holy to the Lord.
33 He may not make search to see if it is good or bad, or make any changes in it; and if he makes exchange of it for another, the two will be holy; he will not get them back again.
34 These are the orders which the Lord gave to Moses for the children of Israel in Mount Sinai.

Leviticus 27:28-34 Meaning and Commentary

INTRODUCTION TO LEVEITICUS 27

This chapter contains various laws concerning vows made unto the Lord, whether of persons whose estimation was to be made by the priest, according to their age, sex, and condition, Le 26:1-8; or of beasts, clean and unclean, good or bad, Le 26:9-13; or of houses, fields, and lands, the estimation of which was to be according to its seed, and the time of its being set apart, whether from or after the year of jubilee, and the number of years to it, Le 26:14-25; with this exception to the above laws, that no firstling of the Lord's might be sanctified, and if an unclean beast it might be redeemed, but nothing devoted to the Lord, whether of man, beast, or field, might be sold or redeemed, Le 26:26-29; and the chapter is concluded with some laws concerning the redemption or change of tithes, what might or what might not be redeemed or changed, Le 26:30-34;

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