The Messiah would be the "New Covenant".
OT Prophecy NT Fulfillment
Isaiah 42:6c
"I the LORD have called thee in righteousness, and will hold thine hand, and will keep thee, and give thee for a covenant of the people, for a light of the Gentiles;"
Matthew 26:28
"For this is my blood of the new testament, which is shed for many for the remission of sins."

Tanakh - Neviim - Isaiah 42:6c

"I HaShem have called thee in righteousness, and have taken hold of thy hand, and kept thee, and set thee for a covenant of the people, for a light of the nations;"

 Hebrew OT - Isaiah 42:6c

תירבל ךנתאו ךרצאו ךדיב קזחאו קדצב ךיתארק הוהי ינא
.םיוג רואל םע

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