A life of service is a life of joy, of rich blessing.
The chapter takes fasting, a religious discipline, and looks at what God’s actually likes about it.
Merely abstaining from food if you remain quarrelsome and greedy in life means nothing.
But further, merely being humble, telling God you realise how unworthy you are, that is not what he is after, self denial as an expression of being aware of your weakness, not enough!
He wants it to signify a determination to live a life of servanthood. Of inviting the poor into your home, of pouring yourself out for the needy.
I’m stating all this very baldly. In Isaiah it is wrapped up in poetic expression. God doesn’t just like this attitude. You will be riding high in the heavens, your bones strengthened, ruins rebuilt, gloom turned to a rising light, you’ll be an unfailing stream of water, quenching the desert.
We’ve had the servant, the contrary means by which God’s victory will be won.
Now we have the life of servanthood for all believers. The discipline and self denial by which our lives will be made rich and our world will be renewed.
At a crossroads in my life, it is an important message.