I heard a great talk the other day about us being the salt of the earth and the light of the world. And it's got me thinking lots about the implications of Jesus saying to us that we are the salt of the earth.
Salt is a preserving substance. So Jesus is saying (amongst other things) that we are preserving elements in the earth ... but the bit that really got me was how he goes on to say if salt loses it's saltiness how can it be made salty again. So if we lose our preserving nature - it's not saying how will the world be preserved but rather how will we be preserved.
So if we are not being the salt that we are, have been created to be, then we lose the saltiness that is our very essence.
Pretty huge implications really, I think