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My most recent publication is the Tyndale New Testament Commentary on the Book of Revelation. You can order it from Amazon and other online retailers (make sure you order mine, and not the previous edition by Leon Morris!), or directly from the publisher on the IVP website.

My other recent publications include:


Do we need new structures for the new thing God is doing?

In all three Synoptic gospels, Jesus concludes a conversation about the contrast between his teaching and practice and that of the Pharisees (and John the Baptist) by means of a parable about wine and wineskins.

No one sews a patch of unshrunk cloth on an old garment, for the patch will pull away from the garment, making the tear worse. Neither do people pour new wine into old wineskins. If they do, the skins will burst; the wine will run out, and the wineskins will be ruined. No, they pour new wine into new wineskins, and both are preserved. (Matt. 9:16–17)

No one sews a patch of unshrunk cloth on an old garment. If they do, the new piece will pull away from the old, making the tear worse. And people do not pour new wine into old wineskins. If they do, the wine will burst the skins, and both the wine and the wineskins will be ruined. No, they pour new wine into new wineskins. (Mark 2.21–22)

No one tears a piece out of a new garment to patch an old one. If they do, they will have torn the new garment, and the patch from the new will not match the old. And people do not pour new wine into old wineskins. If they do, the new wine will burst the skins; the wine will run out and the wineskins will be ruined. No, new wine must be poured into new wineskins. And none of you, after drinking old wine, wants the new, for you say, ‘The old is better.’ (Luke 5.36–39)
The reference of the two parables is fairly straightforward. In most cultures, cloth shrinks when it is washed, and it you put an unprewashed piece of material onto cloth that has already shrunk, when it is washed it will itself shrink and tear a hole. Partially fermented wine (the ‘must’) was stored in wineskins, but as the fermentation process continued, it produced more gases and so stretched the wineskin which was made from the hide of a goat. An old skin which was no longer elastic could not stretch for this new wine, so you needed to use new skins for the current years’ wine production. As with most of Jesus’ parables, the information that it drew on was relatively mundane. But what is its significance? What is Jesus referring to?