Easton’s Bible Dictionary

Surety

One who becomes responsible for another. Christ is the surety of the better covenant (Heb. 7:22). In him we have the assurance that all its provisions will be fully and faithfully carried out. Solomon warns against incautiously becoming security for another (Prov. 6:1-5; 11:15; 17:18; 20:16).

Easton’s Bible Dictionary (1897), public domain. Text via Theographic Bible Metadata, CC BY-SA 4.0.