(21) Then I will command my blessing. That is, He will send out His Divine command to the soil in the sixth year that it should be a blessing to them, and it shall be done. (See Deuteronomy 28:8; Psalm 42:8; Psalm 44:4; Psalm 68:29.)

It shall bring forth fruit for three years.--Better, it shall bring forth produce. This special blessing will be manifested in the abundant crop of the harvest preceding the sabbatical year. Just as at the institution of the weekly Sabbath, when God enjoined abstention from labour, He sent down a double portion of manna every sixth day to make up for the day of rest (Exodus 16:22-27), so He will exercise a special providence every sixth year by blessing the soil with a treble crop to compensate for giving the land a septennial sabbath. As the sabbatical year began the civil year, viz., 1 Tishri, which was in the autumn or in September, the three years here spoken of are to be distributed as follows: (1) the remainder of the sixth year after the harvest; (2) the whole of the seventh year; and (3) the period of the eighth year till the harvest is gathered in from the seeds sown in the eighth year. It will thus be seen that the question anticipated in Leviticus 25:29, viz., "What shall we eat the seventh year?" properly applies to the eighth year, since the requirements for the seventh year are supplied by the regular harvest of the sixth year, and it is the eighth year for which the harvest of the seventh is wanted. To meet this difficulty, one of the most distinguished Jewish expositors of the Middle Ages translates Leviticus 25:20 : "And if ye shall say in the seventh year 'What shall we eat'" i.e., in the eighth year. It may, however, be that the question expresses the anxiety which the people might feel in eating their ordinary share in the seventh year, lest there should be nothing left for the eighth year, since in all other years the harvest is ripening for the next year whilst the fruits of the past year are being consumed.

25:8-22 The word jubilee signifies a peculiarly animated sound of the silver trumpets. This sound was to be made on the evening of the great day of atonement; for the proclamation of gospel liberty and salvation results from the sacrifice of the Redeemer. It was provided that the lands should not be sold away from their families. They could only be disposed of, as it were, by leases till the year of jubilee, and then returned to the owner or his heir. This tended to preserve their tribes and families distinct, till the coming of the Messiah. The liberty every man was born to, if sold or forfeited, should return at the year of jubilee. This was typical of redemption by Christ from the slavery of sin and Satan, and of being brought again to the liberty of the children of God. All bargains ought to be made by this rule, Ye shall not oppress one another, not take advantage of one another's ignorance or necessity, but thou shalt fear thy God. The fear of God reigning in the heart, would restrain from doing wrong to our neighbour in word or deed. Assurance was given that they should be great gainers, by observing these years of rest. If we are careful to do our duty, we may trust God with our comfort. This was a miracle for an encouragement to all neither sowed or reaped. This was a miracle for an encouragement to all God's people, in all ages, to trust him in the way of duty. There is nothing lost by faith and self-denial in obedience. Some asked, What shall we eat the seventh year? Thus many Christians anticipate evils, questioning what they shall do, and fearing to proceed in the way of duty. But we have no right to anticipate evils, so as to distress ourselves about them. To carnal minds we may appear to act absurdly, but the path of duty is ever the path of safety.Then I will command my blessing upon you in the sixth year,.... Upon their fields, vineyards, and oliveyards, and make them exceeding fruitful, more than in other years; all fruitfulness at any time depends upon the blessing of God, and follows upon it, but is more visible and observable when there is an exceeding great plenty:

and it shall bring forth fruit for three years; and thus God blessed the sixth year with such a plentiful increase as was sufficient for time to come, until a new crop was gathered in; as he had blessed the sixth day with a double portion of manna, for the supply of the seventh.