Pronunciation: [haθ mˈɜːsi ˈɒn] (IPA) 
The phrase "hath mercy on" is an archaic way of saying "has mercy on". In modern English, the word "hath" is rarely used and has been replaced with "has". The pronunciation of "hath" is /hæθ/ with the "th" sound being pronounced as in "the" or "this". The phrase "mercy on" is pronounced as /ˈmɜːsi ɒn/ with the stress on the first syllable of "mercy". Overall, the correct spelling for this phrase is "has mercy on".
The phrase "hath mercy on" is an archaic expression commonly found in religious texts, particularly in older translations such as the King James Version of the Bible. In contemporary English, the phrase can be understood as having compassion or showing kindness towards someone.
In a religious context, "hath mercy on" refers to an act of mercy or forgiveness bestowed upon a person by a higher power, often believed to be God. It suggests that the person being shown mercy has committed a wrongdoing or transgression but is being granted forgiveness or relief from punishment.
The term "hath" is an archaic form of the verb "has" or "have," used to indicate possession or ownership. Thus, "hath mercy on" signifies the possession or possession of mercy, indicating that mercy is a quality or attribute that can be shown by a divine source.
When someone "hath mercy on" another, they are typically depicted as having the power, authority, or disposition to grant forgiveness or alleviate suffering. It implies that the person showing mercy has the ability to exercise judgment and compassion in their decision-making, offering leniency or a reprieve from deserved consequences.
Overall, the phrase "hath mercy on" conveys the idea of a benevolent being bestowing kindness, compassion, and forgiveness on an individual. It emphasizes the notion of undeserved favor or grace extended towards those who have done wrong, allowing them an opportunity for redemption or forgiveness.
