God comforts His people, primarily by forgiving our sins, cleansing us from all unrighteousness, and reconciling us to Himself. Judgment is taken away, and everlasting life is promised!
One of the greatest metaphors God uses to comfort His people is that of the Shepherd and His sheep.
The metaphor refers to sheep being scattered, wandering away, and fleeing due to fear. These are pictures of the sins of the Lord's people, that cause them to disobey Him and leave Him.
But Christ is made like His people, so that He could die in our place, judged by God for our sins laid upon Him.
Christ's sacrifice at Calvary puts away forever the wrath of God for our sin.
In Hebrews 2, Christ as God incarnate in human flesh is revealed both as the sacrifice to save His people from the power of death, and as the perfect High Priest to make reconciliation to God for us.
Note the perfect efficiency of Christ, as both the man sacrificed unto God to take away our sins, and as the intercessor, the priest to present that sacrifice to God, and to plead its efficacy and sufficiency unto God.
Christ reconciles us to God! He takes away the dispute God had against us for our sin. Truly, the "old account was settled long ago" by Jesus Christ!
Because Christ both offered Himself as God's Lamb, and presents as our High Priest that offering to God, He is able to ensure to us, that God is now satisfied with us for Jesus' sake.
Indeed, this conjoining of Christ as offering and priest was foretold in Isaiah 53. After Jesus was made the Lamb to die for the disobedient sheep, He made intercession for us!
He was exalted to the heights of glory and honor by God on account of this, His great work!