Gill's exposition note on work for sabbath
<p>"if a man had an ailment in his throat, he might not gargle it with oil, but he might swallow a large quantity of oil, "and "if he was healed, he was healed" (i.e. it was very well, it was no breach of the sabbath); they may not chew mastic, nor rub the teeth with spice, on the sabbath day, , "when it is intended "for healing"; but if it is intended for the savour of his mouth, it is free.''
 
 
There are several things they allowed might be done on the sabbath; but then they did not reckon them to come under the notion of healing.
"Three (d) things R. Ishmael bar Jose said he had heard from R. Matthia ben Charash; they might let blood for the stranguary on the sabbath day; one that was bit by a mad dog, they might give him hog's liver to eat; and he that had an ailment in his mouth, they might put spice to it on the sabbath day: but the wise men say of these, that there is not in them , anything of medicine.''
Indeed, in case of extreme danger of life they did admit of the use of medicine, by the prescription of a physician (e).
"<b>Danger of life drives away the sabbath;</b> wherefore, if there is any danger in a sick person, it is lawful to kindle a fire for him, &c. and they may kill, and bake, and boil: and though there may be no apparent danger, only a doubt of danger; as when one physician says there is a necessity, and another physician says there is none, they may profane the sabbath for him.''
Hence it is very clear with what view the Pharisees asked Christ this question; and that it was, as the evangelist says, that they might accuse him: either of cruelty and weakness, should he answer in the negative, that either he was not able to heal the poor man before him, or wanted compassion; or should he answer in the affirmative, as they expected, and act upon it, then they might have wherewith to charge him before the sanhedrim as a violator of the sabbath, and of their canons concerning it.
(a) T. Hieros. Yoma, fol. 40. 1.((b) In loc. (c) Maimon. Hilchot Sabbat, c. 21. sect. 24. (d) T. Bab. Yoma, fol. 84. 1. Vid. Misn. Yoma, e. 8. sect. 7. (e) Kotsensis Mitzvot Tora pr. neg. 65. Maimon. in Misn. Sabbat, c. 18. sect. 3.</p>