William Burkitt on John 9:13

Observe here, 1. How the Jews, who should have been full of silent wonder, and inclined to believed in Jesus Christ, so omnipotent an agent, are prejudiced against him, and bring the late blind man before the Pharisees, our Saviour's professed enemies,

Observe, 2. The time which our Saviour chose for working this cure, it was on the sabbath? Many, if not most of Christ's famous miracles, were wrought upon the sabbath day. Upon that day he cured the withered hand, Matt 12:13 Upon that day he cured the impotent man at the pool of Bethesda, Joh 5:9 Upon that day he cured the blind man here. This Christ did probably, for two reasons:

1. To confirm his doctrine which he preached on that day, by miracles: therefore his preaching and working miracles went together.

2. To instruct the Jews (had they been willing to receive instruction) in the true doctrine, and proper duties of their sabbath; and to let them know, that works of necessity and mercy are very consistent with the due sanctification of the sabbath. It is hard to find out any time wherein charity is unseasonable; for as it is the best of graces, so the works of it are fittest for the best of days.