Well the Old testament is ambiguous about the divinity of Christ. It is only in the new testament that the full revelation of the incarnation becomes clear.
Most of the Jews at the time of Jesus were expecting a political messiah like Elijah, Moses, or the prophets, in a general sense, but more specifically, an heir to the thrown of David; see Nathan’s prophecy to David in 2 Samuel 12-17, the beginning of Psalm 89, 1 Chronicles 17:11-15. These prophecies are an assurance of the political continuation of David’s dynasty. You also see a prophecy of God’s blessings on Judah in Genesis 49:9-12 which seems to imply that God will bless the world through Judah.
Psalm 72 is probably one of the clearest expressions of the awaited savior King that the Jews were expecting in the day of Jesus. These prophecies are probably some of the oldest ones taken during the glory days of the Davidic Kings.
During the reign of more inept kings like Ahaz and during the exil in Babylon, the messianic hope became more nuanced; see Isaiah 7:14-17, 9:5-6, expressing what seems to be more than just the expectation of a political small m messiah. Isaiah 11 basically shows the Messiah as full of the spirit of God and he will restore humanity to paradise. Micah also expresses this messianic hope in chapter 5:1-6. So did Jeremiah 23:5-6, and Ezekiel 17:22-24. For Ezekiel, this messiah will be David 34:23 and 37:24.
After the exil, when there was no Davidic King in the picture, the Davidic Messiah became much less warlike; see Zechariah 9:9-17. The messiah is the instrument of God’s salvation, but it is a more humble, less kingly Messiah who rides on an ***. It is also the suffering servant shown in Isaiah. It is these last prophecies that most resemble the humble and meek Jesus we know. Jesus often resisted the notion of Messiah that the people tried to pin on him because he did not see himself as a political freedom fighter, and king.
In short, most of the Old Testament references to the messiah are references to a human messiah where the aspect of his divinity is forshadowed but still unclear. The divinity of Jesus is most clearly demonstrated in the New Testament.
Hope this helps,
Ut.
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