"Hath mercy" is a phrase often used in religious contexts to refer to a merciful act or deed. In secular language, there are a variety of synonyms and phrases that can convey the same sentiment. Terms such as compassion, kindness, forgiveness, grace, and clemency can all be used to express the concept of "hath mercy". Other phrases that can be used include "showing understanding", "acting with benevolence", or "extending sympathy". Regardless of the language used, the underlying message remains the same - to exhibit kindness and compassion towards others.