Mark 2:18-22 - New Wine

18 And John's disciples and the Pharisees were fasting, and they came and asked him, "Why do the disciples of John and those of the Pharisees fast, but your disciples do not fast?" 19 And Jesus said to them, "Can the groomsmen fast while the bridegroom is with them? As long as they have the bridegroom with them, they cannot fast. 20 But the days will come when the bridegroom will be taken away from them, and then will they fast in that day. 21 No one sews a piece of unshrunk cloth on an old garment, or else the patch shrinks and the new tears away from the old, and a worse hole is made. 22 And no one puts new wine into old wineskins, or else the wine will burst the skins, and the wine is lost, and the skins will be destroyed; but they put new wine into fresh wineskins."

See also: Matthew 9:14-17; Luke 5:33-39