Jesus is not another God. He is one with God. So you see, they didn't follow his teachings.
The jews killed jesus because he wasn't the Messiah they wanted. They wanted a Messiah like Moses was their savior from Egypt. Moses was a belligerent man with a good mind for warfare, trained in the finest military tactics at the Egyptian court, who massacred his way through Egypt to the Promised Land with his army which he trained up to par.
When Jesus came about, he was a peaceful man who didn't want to drive the Romans out of Israel and punish the enemies of the jews, as Moses did. He taught forgiveness and that the reward and salvation will be in the afterlife. he also went against the dominant hierarchy, the rabbi order, and so, they had him killed. He was too popular with the masses to be allowed to live for if the masses would adopt his ways, the rabbi order would lose all its power and influence. So the rabbis and the jewish officials went to Pontus Pilate and demanded that he kills Jesus or else he will have a riot on his hands the like of which wasn't since the Maccabean rebellion (which is what is celebrated during hannukah). Pilate didn't want to lose his position, which would have happened if there would be a revolt and Rome would have to commit its already thin-spreaded forces... so in the interest of keeping the peace, he took Jesus prisoner and let him be tried by the Jews, which sentenced him to death.
Jesus, the Messiah, was promised by God to save humanity from the sins of Adam and Eve and offer forgiveness, and this was promised since the genesis.
Now in the OT, you also have phrases like this:
He will bring destruction to the enemies of Israel (Num 24:15-19).
He will reign in perfect peace, justice, and righteousness as King over the entire earth (Gen 49:10
He will bring salvation to Israel and reign over her as King (Is 49:5-6a; Micah 5:2; Jer 23:5-6; 30:21; 33:16; Ezek 37:15-28).
He will be given glory and everlasting dominion over all the nations of the earth, and His kingdom will be established forever (Dan 7:13-14; 2 Sam 7:10-13; Ps 132:11b).
Now... this is in contrast to stuff like
He will be called Wonderful Counselor, Mighty God, Eternal Father, Prince of Peace (Is 9:6c). - not really a prince of peace if he lays death and destruction now is he?
He will bring good news to the afflicted (Is 61:1-3).
He will wash away the guilt of sinners (Is 4:1-4).
He will serve as a channel of divine blessing to the world (Gen 12:1-3).
He will be called “the Lord our righteousness” (Jer 23:6; 33:16; cf. Mal 4:2).
And also, phrases like this
He will come from the town of Bethlehem (Micah 5:2).
He will come in humility (Zech 9:9).
He will die as a substitutionary sacrifice for guilty sinners to provide forgiveness and salvation (Is 53:1-12; Zech 3:9).
He will be rejected by man, pierced by the Jews, and crushed by God the Father (Is 53:1-12; Zech 11:4-14; 12:10; 13:7; cf. Ps 22; cf. Dan 9:26a).
So yeah. Jesus is one with God, prophecized since the Genesis and promised by God to mankind to free it from its sins... And he is one with God and the Holy Spirit.