And he answering, said unto him, Lord,.... Which, if understood of God the Father, may intend the intercession of Christ with him, who not only intercedes for his elect, for those that are unconverted, that they may be converted; and for converted ones, for the carrying on of the work of sanctification; for fresh discoveries of pardoning grace; for consolation and support under trouble; for their final perseverance, and eternal glorification: but also for his enemies, for profane sinners, and for formal professors; for the sake of his own people among them, and for their preservation, and for the averting of divine judgments from them, at least as yet: and so the Jewish nation was spared for some time after this, though now deserving of immediate destruction. But rather, the intercession of the ministers of Christ, and other good men, may be here meant; who, as Abraham interceded for Sodom, and Moses and Aaron for Israel, so do they for a sinful nation, a barren and unfruitful church and people, and particular persons, that they may be spared, at least a little longer, as here:
let it alone this year also; have patience one year more, or a little while longer. The Ethiopic version renders it, "until the winter", that being a time for digging about, and dunging of trees, as follows,
till I shall dig about it, and dung it; these same phrases are used in the "Misna" (k),
, "they dung and dig" in gardens of cucumbers, and gourds, until the beginning of the year:''
upon which their commentators say (l), that they carry dung into their gardens to moisten the earth, and dig about the roots of the trees, and lay them bare, and cover them again, and prune them, and smoke them to kill the worms. And by these phrases may be signified the various means Christ made use of by his own ministry, and by the ministry of his apostles, to make the Jews a fruitful people; and rather the means Christ's ministers make use of, as did the apostles with the Jews, to reach the cases of barren professors; as by "digging", striking at, and exposing some secret sin or sins, which are the root and source of their barrenness; showing them, that they have no root in Christ, nor the root of the matter in them; and declaring to them the insufficiency of a mere profession of religion to save them: and "dunging", which as it supposes want of heat, or coldness, which is the cause of barrenness, and signifies, that such professors are without spiritual life, and without spiritual heat, or real warmth of love to Christ, his truths, ordinances, and people, and discharge their duty in a cold and lifeless manner; so it may design the means they make use of to warm and fire them with zeal for God, and true religion; by preaching the soul quickening doctrines of the Gospel, and by laying before them the agreeableness of a becoming zeal, and the disagreeableness of a lukewarm spirit and disposition, an indolence and unconcern for the glory of God, and interest of Christ.
(k) Sheviith, c. 2. sect. 2. (l) Jarchi, Maimon. & Bartenora in ib.

he answering, &c.--Christ, as Intercessor, loath to see it cut down so long as there was any hope (see Luke 13:34).
dig, &c.--loosen the earth about it and enrich it with manure; pointing to changes of method in the divine treatment of the impenitent, in order to freshen spiritual culture.