The Parable of The Two Builders: Matthew 7:24-27

It’s a summer day in our garden in rural Warwickshire. My grandfather – a large man in tight shorts – is slowly lowering himself into a deck chair. We hear a sound, like a long zipping noise and the splitting of wood. When we look up, Grandad is on the grass, tangled in chair wreckage and trying to save his lemonade. 

That was the day our grandad became a living parable, and the lesson he taught us was this: before you put your weight on som...