All God's Promises are Yes & Amen by Dr Michael H Yeager

Over 7000 promises in the Bible!
A declaration that one will do or refrain from doing something specified. It is a legally binding declaration that gives the person to whom it is made a right to expect or to claim the performance or forbearance of a specified act.

OATH - a solemn usually formal calling upon God or a god to witness to the truth of what one says or to witness that one sincerely intends to do what one says. A solemn attestation of the truth or inviolability of one's words.
Swear - to state (something) very strongly and sincerely: to promise very strongly and sincerely to do or not do something

VOW - a solemn promise or assertion; specifically: one by which a person is bound to an act, service, or condition.
Covenant - a usually formal, solemn, and binding agreement: compact, a written agreement or promise usually under seal between two or more parties especially for the performance of some action. An agreement, assurance, commitment, guarantee, obligation, pledge, word.