John 5:9

The man's strength returneth immediately; he is able immediately to arise, take up his bed, and to walk. All this was done on the sabbath day; on which day it was unlawful to carry any burdens, Jeremiah 17:21,24; and by the Jewish canons it was punishable by death, or scourging. But our Saviour had a mind to let the Jews know that he was Lord of the sabbath, and what had been unlawful without his special command, became lawful by it. Neither was this against the sense of the law, though against the letter of it; the law only prohibited civil labour, and carrying burdens for their own profit, and in the way of their trade; it forbade the doing of nothing which was to be done as a public testimony of the goodness and mercy of God showed to persons: and by this our Saviour opens a way for his correction of their erroneous opinions about the true sanctification of the sabbath. We shall observe, that our Saviour used the like phrase to him that had the palsy, Matthew 9:6; and to the centurion's daughter, Mark 5:41, Damsel, arise; and to Lazarus, 1 Thessalonians 11:43, Lazarus, come forth; which our Saviour did for the testification of the miracle to all that should see them. It is further observed by Heinsius, that our Saviour did many miracles on the sabbath day, because that day was the usual time when the Jews were wont to consult the prophets for help, as may be learned from 2 Kings 4:23.