Cyril of Alexandria

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. …

Catena Aurea by Aquinas ↗

Augustine of Hippo

Aug. de Qu. Ev. l. iii. qu. 7.) But though our Lord was healing the body, He asked this question, "is it lawful to save the soul or to lose it?" either because He performed His miracles on account of faith in which is the salvation of the soul; or, because the cure of the right hand signified the salvation of the soul, which ceasing to do good works, seemed in some measure to have a withered right hand, i. e. He placed the soul for the man, as men are wont to say, "So many souls were there."

Catena Aurea by Aquinas ↗

Ambrose of Milan

"Are you angry at me because I have healed the whole man on the sabbath day?" In this place he revivified with the salutary strength of good works the hand which Adam stretched out to pluck the fruit of the forbidden tree. The hand which had withered through a crime was healed by good deeds. Christ thereby rebuked the Jews who violated the precepts of the law with evil interpretations. …

Commentary on Luke ↗

Bede

But Jesus said to them: I ask you, is it lawful to do good or to do evil on the Sabbath? The Lord, anticipating the calumny of the Jews which they had prepared for him with a treacherous mind, reproached them because they violated the commandments of the law with a twisted interpretation, thinking that even good works should be refrained from on the Sabbath, whereas the law commands to abstain from evil works saying: You shall do no servile work on it (Levit. …

On the Gospel of Luke ↗