41 The term ἄνοια (anoia) denotes a kind of insane or mindless fury; the opponents were beside themselves with rage. They could not rejoice in the healing, but could only react against Jesus.
42 The use of the optative (ποιήσαιεν, poiēsaien, “might do”) in an indirect question indicates that the formal opposition and planning of Jesus’ enemies started here ( §§385.1; 386.1).

In other versions

But they were filled with fury and discussed with one another what they might do to Jesus.

But the Pharisees and the teachers of the law were furious and began to discuss with one another what they might do to Jesus.

They, however, were filled with rage and started discussing with one another what they might do to Jesus.

At this, the enemies of Jesus were wild with rage and began to discuss what to do with him.

But they were filled with fury, and began discussing with one another what they might do to Jesus.

And they were filled with madness; and communed one with another what they might do to Jesus.

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