Definition & Meaning of "on bended [knee]"

What is the origin of the idiom "on bended knee" and when to use it?

The origin of the idiom "on bended knee" can be traced back to the cultural and historical importance of kneeling as a way to show respect, submission, or a sincere request. People have knelt down throughout history to demonstrate deference to authority, express deep reverence in religious ceremonies, or make formal appeals. Kneeling on one knee represents humility and vulnerability, highlighting the genuine and earnest intentions of the person adopting this position. It is often associated with marriage proposals and declarations of love, where one person kneels down to ask for another's hand in marriage.