This phrase means that clear signs of something unfortunate or disastrous have appeared. Something is about to end, and often it spells catastrophe. If someone tells us that ‘the writing is on the wall’ for us, then we worry, with good reason.
The source of the saying gives us the reason why. It is about God telling us that a crisis is coming! When God signals a dramatic change in the world, it happens. He is the creator of heaven and earth, with boundless power, so however unlikely we may think the message, it will be fulfilled.
The writing is on the wall for our world. The selfishness, violence and lack of respect for God which is found almost everywhere, tell us that Jesus will soon return to the earth. The Bible tells us that he will rid the world of godless people and behaviour, and establish the perfect Kingdom of God.