31:1-9 God assures his people that he will again take them into covenant relation to himself. When brought very low, and difficulties appear, it is good to remember that it has been so with the church formerly. But it is hard under present frowns to take comfort from former smiles; yet it is the happiness of those who, through grace, are interested in the love of God, that it is an everlasting love, from everlasting in the counsels, to everlasting in the continuance. Those whom God loves with this love, he will draw to himself, by the influences of his Spirit upon their souls. When praising God for what he has done, we must call upon him for the favours his church needs and expects. When the Lord calls, we must not plead that we cannot come; for he that calls us, will help us, will strengthen us. The goodness of God shall lead them to repentance. And they shall weep for sin with more bitterness, and more tenderness, when delivered out of their captivity, than when groaning under it. If we take God for our Father, and join the church of the first-born, we shall want nothing that is good for us. These predictions doubtless refer also to a future gathering of the Israelites from all quarters of the globe. And they figuratively describe the conversion of sinners to Christ, and the plain and safe way in which they are led.
5. Samaria—the metropolis of the ten tribes; here equivalent to Israel. The mountainous nature of their country suited the growth of the vine.
eat … as common—literally, "shall profane," that is, shall put to common use. For the first three years after planting, the vine was "not to be eaten of"; on the fourth year the fruit was to be "holy to praise the Lord withal"; on the fifth year the fruit was to be eaten as common, no longer restricted to holy use (Le 19:23-25; compare De 20:6; 28:30, Margin). Thus the idea here is, "The same persons who plant shall reap the fruits"; it shall no longer be that one shall plant and another reap the fruit.