Mark 2:22
And no man putteth new wine into old bottles: else the new wine doth burst the bottles, and the wine is spilled, and the bottles will be marred: but new wine must be put into new bottles.
And no man putteth new wine into old bottles,.... By "old bottles" are meant, the Scribes and Pharisees, the whole, which needed not a physician, and the righteous, Christ came not to call; and by new wine, either the love of God, which is not shed abroad in the hearts of such persons; or the blessings of the new covenant, which are not bestowed upon them; or the Gospel, which brings an account of both, which is not received by carnal men:
else the new wine doth burst the bottles, and the wine is spilled, and the bottles will be marred: the Gospel will only fill them with rage and fury, and they will despise it, and let it go; which will be an aggravation of their sin and misery, and so will prove the savour of death unto death unto them:
but new wine must be put into new bottles; into the hearts of sinners, who are called to repentance, and are renewed in the Spirit of their minds; are newborn babes, that desire the sincere milk of the word, and wine of the Gospel; in these the love of God is exceeding abundant, and it comes in with full flows into their souls; all grace is made to abound towards them, and the word of Christ richly dwells in them; in whom these things remain and abide, and they themselves are saved with an everlasting salvation;
See Gill on "Matthew 9:17".