Prophecy of a savior in the Hebrew Scriptures (Old Testament).
"Therefore the Lord himself will give you a sign: The virgin will conceive and give birth to a son, and will call him Immanuel ('God with us')” - Isaiah 7:14
Micah 5:2 prophesies that the ruler of Israel will come from Bethlehem,
Isaiah 9:6, which foretells that a child will be born who will be called "Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace".
Jeremiah 31:31-32 mentions the coming of a new covenant, which would be fulfilled through Jesus' sacrifice.
Isaiah 61:1-2 describes the Messiah as one who would bring good news to the poor, bind up the brokenhearted, and proclaim liberty to the captives.