John Lightfoot on John 5:6

[Wilt thou be made whole?] It is no question but he desired to be healed, because for that very end he had lain there so long. But this question of our Saviour hath respect to the sabbath; q.d. "Wouldst thou be healed on the sabbath day?" For that they were infinitely superstitious in this matter, there are several instances in the evangelists, not to mention their own traditions, Mark 3:2; Luke 13:14, 14:3.