"In acquiring the new wine, our battle is against sin. But in acquiring the new wineskin, our battle is against religious traditions that have annulled the word of God. And it is far more difficult for many to break free from the traditions of men than it is for them to break free from sin! But, men of violence alone will possess the kingdom of God (Matt. 11:12). Religious traditions cannot be removed apart from violent treatment." Zac Poonen
I suppose proud papa this is the saying which you may be taking exception to from which Sree quotes. The meaning is what follows from the same book by Zac Poonen.
"Jesus was crucified not because He preached against sin, but because He preached against religious traditions that had replaced God's word among the Jews (Mk. 7:1-13). He exposed the hypocrisy of religious leaders, the emptiness of their religious traditions and turned out of the temple those who made money in the name of religion. His zeal to purify God's house was what infuriated the religious leaders to ask for His crucifixion.
It is unlikely that people will demand our crucifixion, for preaching a message of `brokenness' and the new wine. But if you are determined to go on and proclaim the whole counsel of God that the new wine must now be put into new wineskins, you can expect the wrath of the religious hierarchy in every single denomination that there is in Christendom.
Why did Jesus say that the new wine could not be put into the old wineskin? Because the old wineskin could not stretch any more, and so would burst. The old wineskin was once useful - to put the old wine in - but it is of no use for the new wine.
The Jewish religious system - the old wineskin - was once ordained by God through Moses to contain the old wine. But once Jesus had come and established a new covenant, a new wineskin was needed. The old had to go. Jesus said that the old could not even be modified with the new patched on to it! That would tear the garment (Lk. 5:36).
We may think that, being Christians, we have got rid of the old Jewish wineskin and that we have a new wineskin in the Christian church. But if you look carefully at what you call your Christian assembly, you may be surprised to find a number of old-covenant characteristics in it.
Consider just three examples, although there are many others.
First of all, the Jews had a special tribe (the Levites) who were priests who did all the religious work. Not all Jews could be priests. Under the new covenant however, all believers are priests (1Pet. 2:5; Rev. 1:6). Although this is a truth held theoretically by most believers, it is actually practised by very few. Almost every group of Christians has their 'priest' or 'pastor' or 'God's servant' or 'full-time worker' who are exactly like the Levites of old, leading the worship of God's people. Only these 'Levites' can baptise new converts and break bread. And these 'Levites' are supported by the tithes of God's people. In the meetings, these 'Levites' dominate the show, giving no opportunity for a 'body'-ministry. A one-speaker show is part of the old wineskin. Under the new covenant, every believer can drink of the new wine, be anointed with the Holy Spirit and have the gifts of the Spirit. Two or three prophets are to begin the meeting, one or two may speak in tongues (with an interpretation for each) and every believer is free to prophesy in the meeting and build up the church. This is the new wineskin (1 Cor. 14:26-31). The new wine is described in 1 Cor. 13 - the life of love. The new wineskin is described in 1 Cor. 12 and 14. But how many believers want things done God's way? Alas, very few. Most are content with their old wineskin, and their paid 'Levites'.
Secondly, the Jews had their prophets who found God's will for them in various matters - since the prophets alone had the Spirit. But under the new covenant, the prophets have quite a different function - to build up the body of Christ (Eph. 4:11,12). Since all believers can now receive the Holy Spirit, they do not have to go to some prophet to find out God's will for them (Heb. 8:11; 1 Jn. 2:27). Yet many believers are still living in the old wineskin of going to some man of God to find out what they should do, whom they should marry, etc.
Thirdly, the Jews were a large community of people scattered over a wide area but having a central headquarters in Jerusalem and having an earthly High Priest as their leader. Under the new covenant, Jesus alone is our High Priest and the only headquarters we have is the throne of God. The Jews had a lampstand with seven branches branching out of the central stem (Ex. 25:31,32). This was the old wineskin."
http://www.cfcindia.com/web/books/zac/new_wine_in_new_wineskins.html