Mediator

lit., "a go-between" (from mesos, "middle," and eimi, "to go"), is used in two ways in the NT, (a) "one who mediates" between two parties with a view to producing peace, as in 1—Timothy 2:5 , though more than mere "mediatorship" is in view, for the salvation of men necessitated that the Mediator should Himself posses the nature and attributes of Him towards whom He acts, and should likewise participate in the nature of those for whom He acts (sin apart); only by being possessed both of deity and humanity could He comprehend the claims of the one and the needs of the other; further, the claims and the needs could be met only by One who, Himself being proved sinless, would offer Himself an expiatory sacrifice on behalf of men; (b) "one who acts as a gurantee" so as to secure something which otherwise would not be obtained. Thus in Hebrews 8:6; 9:15; 12:24 Christ is the Surety of "the better covenant," "the new covenant," guaranteeing its terms for His people.