followers of John the Baptist came to Jesus. Then they asked, "Why do we and the Pharisees fast, while the followers and you had not?"
Jesus answered, "How do you think? Can the guests at a wedding party grieve when the bridegroom is still there with them? Of course not! But the time will come when the bridegroom was taken away from them. At that time then they fasted
And no one puts a piece of cloth that has not been shrunk on an old garment, for such a patch tears away from the garment and a worse rent (tear) is made.
So also no one puts new wine into old wineskins. Because the bag would rupture and damage, and wine is wasted. New wine must be poured into a new bag too, so both are still good. "