In Deuteronomy, the real and true God teaches that the mind of those who love God must not go astray. They must acknowledge no gods besides Him, but confess the One True God alone.
He commands them to arm themselves with strong anger against those who dare to think anything other than this, saying:
"If your brother, the son of your father or of your mother, or your son, or your daughter, or the wife in your bosom, or your friend who is as your own soul, entices you secretly, saying, Let us go and serve other gods ... you shall not consent to him or listen to him. Your eye shall not pity him, nor shall you spare him or conceal him. You shall surely denounce him" (Deut 13:6, 8-9).
The Jews, again, looked only at the falls of others. What was enacted concerning one matter alone, they irrationally extended to every case.
When they noticed anyone doing something outside the order of the legal commandments, they brought him to the rulers, imagining that by this they honored the Lawgiver.
For this reason, I think, they also sought Jesus, saying, "Where is He?"
When they proved unable to find Him anywhere, they brought the man upon whom the miracle had been worked, as a secondary substitute.
By his testimony, as it were, he would seal the charge that the law had been violated by the One Who healed him on the Sabbath.
That they burned with uncontrollable anger over the preparation of clay on the Sabbath is made clear by the blessed Evangelist.
He skillfully presents their conduct as worthy of laughter when he adds the words, "Now it was a Sabbath when Jesus made the clay."