STAND IN THE GAP
Ezekiel 22:30
"And I sought for a man among them..."
When God made man (Adam), He brought him to a certain level of connection with Him, giving him Dominion here on earth. However, the sin and eventual fall of man rid us of this and created a chasm, a gap between God and man. Hereafter the Bible is filled with intances of God raising men that can bridge this gap on the behalf of his people, be it a family or a nation. Per time, from the people, He chose an individual to be a Representative, to plead the case of the people before Him.
"...that should make up the hedge..."
Jesus Christ came down to earth not just on a Redemptive mission, but on a Modelling one as well. Prior to Him, every other person was always a TEMPORARY solution; if that man did not raise another to carry on, that cycle would close until God raised another. This is an indicator of God's love for man; He continually raises men for their sake.
God needed a PERMANENT so...