I can't name a conference speaker that has been more stimulating than John Piper. He has stretched us theologically, passionately urging us to a renewed vision of, and joy in, the glory of God.

The twitter message "Lennox u rok my sox" scrolled on the screen as the smoke from the smoke machine rose from the stage.This is not your grandfather's Katoomba Christian Convention.

Prof John Lennox opened the final day of Oxygen 11 with a significant challenge to church leaders.

There is something wonderful about John Lennox. As an apologist for the Christian faith he is equal parts brilliant, winsome, and humble.

Day two of the Oxygen conference opened with a call from John Piper to remember that 'right thinking about God exists for the sake of right affection for God.

A roundup of Sydang coverage of Oxygen conference and the visit of John Piper and John Lennox.

Oxygen is big. Enormous. The room is massive - big enough to build big trains. And full of Christian leaders. 2300 leaders from all over the country and beyond.

In his first address at Oxygen 11, John Piper challenged church leaders to focus on and glorify God for the right reasons.