Jesus was sent to the people of Israel and in reading what he said we shouldn't ignore the cultural context of what he said. Neither should we ignore the cultural context of the NT writers.
The NT teaches that Jesus died. The OT teaches that the dead know nothing.
Jesus spoke in parables to the Jews but explained his parables to his disciples. Matthew said, "All these things spake Jesus unto the multitude in parables, and without a parable spake he not unto them."
Paul explained the parable of Jesus' death. You seem to have gotten hung up on the parable itself.
Yes, Jesus taught publically in parables but he also spoke directly to the authorities who confronted him in a language that they understood.
Jesus didn't always explain everything to the apostles......"Thomas said to him, “Lord, we don’t know where you are going"....." Philip said, “Lord, show us the Father and that will be enough for us.”.....“Don’t you know me, Philip, even after I have been among you such a long time? Anyone who has seen me has seen the Father. How can you say, ‘Show us the Father’? 10 Don’t you believe that I am in the Father, and that the Father is in me?
The human body that the Son took on died, the Son then resurrected a new form. You forgot again and left that unpleasant counterpoint out.
The dead humans that have not translated do indeed sleep, "they know nothing" but not so with God incarnate, he never dies just like he said.