1. Lamb of God
This title of the Messiah is found in John 1:29 and 36:
29 On the morrow he sees Yeshua coming unto him, and says, Behold, the Lamb of God, that takes away the sin of the world! … 36 and he looked upon Yeshua as he walked, and said, Behold, the Lamb of God!
By giving Him the title of the Lamb of God, John connected Yeshua with two Old Testament elements: the paschal lamb of Exodus 12 and the Messianic Lamb of Isaiah 53. The title Lamb of God emphasizes that He is the fulfillment of the Feast of Passover and that He will be the final Passover sacrifice.
There are two aspects to Yeshua’s role as mediator.
First, He is the mediator between God and man (I Tim. 2:5).
Second, He is the mediator of the New Covenant. In Hebrews 8:6, He is called the mediator of a better covenant, and in Hebrews 9:15 and 12:24, He is the mediator of a new covenant.
The point here is that, on one hand, He is the mediator between God and man, so He is functioning as a priest. On the other hand, as the mediator of the New—and better—Covenant, He is functioning as the covenant-sealer or signatory.
That Yeshua is our intercessor is brought out in Romans 8:34 and Hebrews 7:25:
Who is he that condemns? It is Messiah Yeshua that died, yea rather, that was raised from the dead, who is at the right hand of God, who also makes intercession for us.
Wherefore also he is able to save to the uttermost them that draw near unto God through him, seeing he ever lives to make intercession for them.
Functioning as our intercessor is part of His high priestly ministry in that He intercedes on behalf of the believer before God. The picture is that as mediator, He represents God to man, and as intercessor, He represents man to God.
The title of Advocate is applied to Yeshua in I John 2:1:
My little children, these things write I unto you that ye may not sin. And if any man sin, we have an Advocate with the Father, Yeshua Messiah the righteous.
The term advocate has the concept of being a lawyer. The reason that believers need Yeshua as their advocate is because of Satan’s title as the accuser of the brethren (Job 1:1-12; 2:4-5; Zech. 3:1-2; Rev. 12:10). Satan still has access to heaven to appear before the very presence of God. He does so for one reason, which is to accuse the brethren. If a believer falls into a state of unconfessed sin, sooner or later Satan will appear before God the Father to accuse that believer. This is the exact reason why believers still need the ministry of Yeshua as an advocate. Whenever Satan has any grounds to accuse a saint, Yeshua can say, “Lay that sin upon my account. I have already paid the penalty for that sin when I died for that person on the cross.”
This particular title emphasizes the Messiah’s work of salvation in that He is the One who saves. As Messiah, He is able to save. By the shedding of His blood, He has provided the basis of salvation. He is viewed as the Savior throughout the New Testament in verses such as Luke 2:11, John 4:42, Acts 5:31, I Timothy 1:1, Titus 2:13, and II Peter 2:20.
Excerpt From: Ariel Ministries. “Messiah Yeshua, Divine Redeemer: Christology From a Messianic Jewish Perspective.”