A covenant, in its most general and historical sense, is a solemn promise to engage in or refrain from a specified action. Under historical English common law, a covenant was distinguished from an ordinary contract by the presence of a seal. Because the presence of a seal indicated an unusual solemnity in the promises made in a covenant, the common law would enforce a covenant even in the absence of consideration. In United States contract law, an implied covenant of good faith is presumed.