New — Fermenting wine will soon burst those bottles, the leather of which is almost worn out. The word properly means vessels made of goats' skins, wherein they formerly put wine, (and do in some countries to this day) to convey it from place to place. Put new wine into new bottles — Give harsh doctrines to such as have strength to receive them.
Related Commentaries of Matthew 9:17
Matthew 9:17
17 Neither do men put new wine into old bottles:b else the bottles break, and the wine runneth out, and the bottles perish: but they put new wine into new bottles, and both are preserved.