The Meaning of the Saying.*This interpretation is further confirmed by the symbolic meaning of Christ’s saying. The imagery of new wine in new wineskins is an object lesson in regeneration. As fittingly explained by Ernest Gordon, "The old wineskins, with their alcoholic lees, represented the Pharisees’ corrupt nature. The new wine of the Gospel could not be put into them. They would ferment it. ‘I came not to call the self-righteous but repentant sinners.’ The latter by their conversion become new vessels, able to retain the new wine without spoiling it (Mark 2:15-17, 22). So, by comparing intoxicating wine with degenerate Pharisaism, Christ clearly intimated what his opinion of intoxicating wine was."
Source:
Jesus and Wine