Is Yeshua (Jesus) identified in the Old Testament?
Judaism teaches the death of the righteous brings atonement to the world. According to the Zohar: "As long as Israel dwelt in the Holy Land, the rituals and the sacrifices they performed [in the Temple] removed all those diseases from the world; now the Messiah removes them form the children of the world (2:212a). "Rabbi Hiyya Bar Abba said: "The sons Aaron [Nadab and Abihu] died the first day of Nisan. Why then does the Torah mention their death in conjunction with the Day of Atonement? . . . it is to teach that just as the Day of Atonement atones, so also the death of the righteous atones." (Leviticus Rabbah 20:12)
Scriptures from Tanakh (the Old Testament) that reveal the death of the righteous atones:
2 Samuel 21:1-14; Numbers 8:19; Deut 24:16 (AJOJ - MB p. 295); 25:1-13; Numbers 35:25-28; Isaiah 53:4-6, 12
Scriptures from the Tanakh that prove the divinity of the Messiah:
Genesis 3:15, 22; Genesis 11:6-7; Joshua 5:13-15; Exodus 3:2-6; Deuteronomy 6:4; Isaiah 7:14; 9:6; 11:1-3; 44:6; 48:16-17; Psalm 45:1-7; 110:1-4; Daniel 7:13-22; Proverbs 30:4; Zechariah 14:1-4
The Hebrew word used for "one" in Deuteronomy 6:4 is echad which means a composite unity. Rambam used yachid or yahid which means only one.