Moses believed in Jesus Christ ( Heb 11:26) and wrote about Him (John 5:43), which was the Torah.
Abraham anticipated the day of seeing Jesus Christ and saw Him ( John 8:56-58)
Even if they didn't know the name of the Son of God would be called Jesus ( Yeshuah ), but they knew Him.
If Elahin should be translated into son of gods, it sounds like claiming all Elohim must be translated as gods as well.
Eliyahu
It all has to do with context and sentence structure.
Now we know, from both Scripture and secular history that Nebuchadnezzar II was not stupid, that, in fact, he was a very wise king who militarily carved out quite an empire and politically administered it well. And he had, just seconds before he saw Jesus in his furnace, had ordered that the three Jews be cast into it for refusing to worship his idol. So, his mind certainly was not on God at that time.
Naturally, he was as astounded as we would be at seeing anyone walking around in a 2000 degree furnace, and, at seeing another person in it who had not been cast into it with the others. He was at a loss for rational thought for a few seconds, but he didn't instantly abandon his own gods and idols.
Neb believed that each nation or people had its own god or gods, & that some were more-powerful than others. That's why, several times, he was known to have uttered "your god' or "the god of Daniel", etc. when referring to THE God. He didn't know that THE God is THE God of ALL people, not just the Jews.
Thus, when he saw Jesus in the furnace, he could see He was much more than just another man. Jesus was likely much more splendorous than the three Jews, and Neb instinctively knew He was the One who'd preserved those men. And, in his astoundment & shock, he'd called Him "a son of the gods", a natural exclamation from a man who'd worshipped multiple gods his whole life.