Turn the other cheek

Respond meekly or mildly to insult or injury without retaliating. For example, There's no point in arguing with that unreasonable supervisor; just turn the other cheek. This expression comes from the New Testament, in which Jesus tells his followers to love their enemies and offer their other cheek to those who have struck one cheek (Luke 6:29).

An adaptation of a command of Jesus in the Sermon on the Mount: “Ye have heard that it hath been said, “An eye for an eye, and a tooth for a tooth”; but I say unto you, that ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also.”