When it comes to new wine and old bottles I think Jesus is speaking to the pharisees abotu the difference between disciples of John and His own. It pointed at fasting.
Luk 5:33-39 KJV And they said unto him, Why do the disciples of John fast often, and make prayers, and likewise the disciples of the Pharisees; but thine eat and drink? (34) And he said unto them, Can ye make the children of the bridechamber fast, while the bridegroom is with them? (35) But the days will come, when the bridegroom shall be taken away from them, and then shall they fast in those days. (36) And he spake also a parable unto them; No man putteth a piece of a new garment upon an old; if otherwise, then both the new maketh a rent, and the piece that was taken out of the new agreeth not with the old. (37) And no man putteth new wine into old bottles; else the new wine will burst the bottles, and be spilled, and the bottles shall perish. (38) But new wine must be put into new bottles; and both are preserved. (39) No man also having drunk old wine straightway desireth new: for he saith, The old is better.
Times were changing. The Church was not in effect yet until
Acts 2. When the bridegroom was taken in the ascension, then the church would fast and pray. But the changeover of times was occurring, depicted by the old bottles referring to people still under the old covenant as opposed to the new covenant life of the wine inside such people. Not until the Holy Ghost made the old bottles new, after the Lord went away to sit on the throne to shed forth that Spirit, did the new wine come with the true reasons the church should fast then in place. But not before.
It was a contrast between NEW COVENANT people and OLD. Getting the disciples of Christ to fast before the bridegroom departed shows the fasting of the church was associated with the time AFTER the new birth experience began. And until then, the OLD DAY of Law was still in effect. So, I think it's more of Old ways versus New ways between Law and Grace that is contrasted.