The phrase "give the devil his due" means to acknowledge someone's good qualities or achievements despite their negative reputation or past actions. Some synonyms for this phrase include "credit where credit is due," "acknowledge the positive," "respect where respect is due," and "recognize the good with the bad." These phrases all express the importance of acknowledging the positive aspects of a person or situation, even if they are often associated with negative associations. "Give the devil his due" is a reminder to always remain objective and fair in our judgments, and to recognize that even the most flawed individuals can have redeeming qualities.