My understanding is that the Jews do not believe in the Trinity, and yet isn’t the Trinity is apparent throughout the Torah? Was this a stumbling block for them regarding Yeshua who at various times claimed he was God? Do they expect their Messiah to be just a man? Any speculation as to why they don’t see the Trinity in their Torah?
We see hints of the Trinity in the Torah because we know about it. But in Old Testament times it was different. The nations around them were polytheistic and God warned the Jews against this. A verse that was drilled into Jewish minds over and over is Deut; 6:4, “Hear, O Israel, the Lord your God is One.” Isaiah repeatedly quoted God as saying He was the only God that ever was or ever would be. Isaiah 43;10, Isaiah 44:6 and Isaiah 45:18 are just a few examples. What we believe to be Old Testament appearances of Jesus are attributed to “the Angel of the Lord” indicating a separate entity, and the Holy Spirit was known as the Glory or Presence of God.
It wasn’t until New Testament times that the trinitarian nature of God was first revealed (John 1:1-2, 14). Therefore the Jews of His time believed Jesus was committing blasphemy by claiming to be God’s Son.
This is still a stumbling block to religious Jews and will be the main reason for their rejection of the anti-Christ when he claims to be God (2 Thes.2:4). They believe their Messiah to be a man, as King David was a man.