Last Sunday's parables show the value of the kingdom of heaven. Likening it to hidden treasure and a pearl of great price, the kingdom of heaven is worth selling everything to get it. Okay, so it's valuable.
But it is needed? After all, most of us do just fine without selling everything to buy pearls of great price or land with treasure buried in it.
Calling it both water and grain (the basics of bread, a staple food then and now), this Sunday's reading from Isaiah makes it clear that the kingdom of heaven is not optional (like pearls and treasure) but essential to life.
Given the continuity of the readings, this means that the kingdom of heaven is both valuable and needed. More on this tomorrow.