Before David became king, he was a shepherd. Later, he was elected king of Israel by God. David was a favorite of King Saul before he ascended the throne, but later King Saul was jealous and afraid of David. Because David won the hearts of the people, King Saul wanted to kill David, so David fled and Saul pursued him all the way, but God kept him, and Saul did not kill him. Later, when he became king, his son pursued him, and God still kept him safe. David's life was not peaceful. He experienced all kinds of wars, but he remained calm until he returned to his ancestors (that is, he left this world). It is conceivable that those who have experienced God's love in this way must be very grateful to God and praise God's love and conservation with their mouths.

Covenant (English: Holy? Covenant), an Abrahamic religious term, refers to the contract established between God and mankind, including the Old Testament, the New Testament and the Koran.

The covenant in Baha 'i faith also refers to the agreement between man and God, that is, God blesses mankind, and mankind has certain obligations in behavior, morality and religion. Because Bahai believes that all religions are the only process in which God gradually reveals himself to mankind and sends the sages of God to teach mankind, there is a "bigger covenant" and a "smaller covenant". The former refers to the agreement between each saint and his followers about the next apocalyptic cycle, while the latter refers to the inheritance system of each religion.