Key[Heb map̱tē (a)ḥ; Gk. kleís]. In Mt. 16:19 the expression “keys of the kingdom” is employed to denote the authority committed by Jesus Christ to His disciples (cf. Mt. 18:18; Jn. 20:22f.). In the book of Revelation He is depicted as holding “the key of David” and “the keys of hell and of death” (Rev.
Locks and Keys
Locks and KeysDevices for securing gates or doors. The earliest lock was a wooden bar or beam that fitted into sockets in the posts of the door or gate. Later clamps were added to the leaves of the gate so that the bar, clamps, and sockets formed a firm unit. Such a lock, of course, could not be opened