There are phrases and title used in regard to Himself which argue that He was conscious of a quite uniquw relation to the world, or, more strictly, to a flock or people whom He acknowledges as His. Of these expressions we shall adduce a few. The terms commonly used in the doctrinal discussions of the atonement, and are drawn from Bible phraseology, such as SURETY, MEDIATOR, HIGH PRIEST, ADVOCATE - all representing Him as our substitute, who appears in the presence of God for us, and conducts our cause, - are not indeed found in the Lord's own words descriptive of Himself. But, beyond question, the thing is there; and He acts as fully conscious that, except through Himself, as Mediator, God could have no intercourse with man, nor man with God. He understands and consults the bests interests of His people in every respect: He took flesh, and knows the infirmities of human nature by personal experience, that He may sympathize with their condition, and compassionately conduct their concerns: He was lawfully called and appointed to that function. And not only so: the sacrificial languagee, which we find Him so frequently usinf, impies a Priest, though He does not expressly appropriate the term.
These title, both numerous and various, imply that He had a relation to manking which is unique; that He stood between God and man; that He was not an individual unit of the race, as all negative theology represents Him; but acting in a representative capacity for it. He assumes a position that no one but Himself could dare to occupy. Thus when He calls Himself THE WAY, in saying, "I am the Way, the Truth, and the Life" (John xiv.6), He is the exclusive Way; not only paving the way for others, but constituting, in His own person and the work the only way by which any could have access to God. That this is the meaning is evident from the subjoined words, "No man cometh unto the Father but by Me." Could Christ affirm this of Himself, if He were nothing more than a teacher, an example, or a merely human founder of a new religion? Certainly not.
George Smeaton, Christ's Doctrine of the Atonement, pg 51& 52