Perhaps preachers today need to think about the assumptions that are common in their congregation - the plausibilities and comforting assurances - which may in themselves have biblical truth, but can easily become insurance policies waved around as immunity from any kind of serious evaluation of how we are living, whether we are truly following the Lord Jesus in the way he walked, whether we are doing righteousness and justice as God commanded.

The trouble today is that many Christians live in a kind of bubble of assumptions about what their Christianity means, especially if it places them comfortably among "the good guys," - assumptions that are likely to be drawn as much from folk-Christianity, surrounding political culture, popular pulp-books about the "End Times," or their favourite guru writer or therapist, than from sober and comprehensive reading of the Bible as a whole. Prophets and preachers have the unwelcome task of pricking that bubble with the sharpness of actual texts and teachings of the Bible itself.

Perhaps preachers today need to think about the assumptions that are common in their congregation - the plausibilities and comforting assurances - which may in themselves have biblical truth, but can easily become insurance policies waved around as immunity from any kind of serious evaluation of how we are living, whether we are truly following the Lord Jesus in the way he walked, whether we are doing righteousness and justice as God commanded.

As Paul says, even though we as human beings know God, we refuse to acknowledge him. That's what Peter did. He refused even to "know" Jesus! Peter's failure reflects all our failure. It forces us to face the reality about ourselves. But the point of the story is that Jesus foretold this - he knew it was coming. And Jesus forgave Peter, when Peter confessed his love for Jesus. So the story illustrates both the horrible nature of sin, and the amazing reality of grace. That's essential to the whole meaning of the gospel.

The Bible itself does not seem too bothered by the idea that talking of God suffering might in any way diminish God, or detract from his perfection. On the contrary, the Bible seems to revel in the richness of describing God in ways that reflect our own human realities.

The issue in the Bible is not just "Do you believe in God or not?" Everybody believed in gods of some sort. The question was, "Who is truly the only living God?" And if that God is indeed Yahweh the God of Israel, then there are consequences in real life - as shown in the Torah.

We tend to speak of sin in very personal and individual terms. Jeremiah does not downplay that, but he also sees how a whole society can be bound up in the tentacles of sin, in the assumptions that everybody around you makes, about how it becomes easier to sin than not to, and how we can become so confused and contradictory in our reactions, when sin is pointed out.