This is a very useful question, for if it is lawful to do good on the sabbath, and there is no reason why those who work should not obtain mercy from God, cease to gather up accusation against Christ. But if it be not lawful to do good on the sabbath, and the law prohibits the safety of life, thou art become the accuser of the law. For if we examine the very institution of the sabbath, we shall find it was introduced for an object of mercy, for God commanded to keep holy the sabbath, that may rest thy man servant and thy maid servant, and all thy cattle. (Exod. 20:23.) But he who has mercy on his ox, and the rest of his cattle, how much rather will he not have mercy on man troubled with a severe disease?
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).