Here the "Jews" is a synecdoche for the "Jewish leaders" who opposed Jesus. AT: "The Jewish leaders said to him" (See: [[rc://en/ta/man/translate/figs-synecdoche]])
# You are not yet fifty years old, and you have seen Abraham?
The Jewish leaders use this question to express their shock that Jesus claims to have seen Abraham. AT: "You are less than fifty years old. You could not have seen Abraham!" (See: [[rc://en/ta/man/translate/figs-rquestion]])
# Truly, truly
See how you translated this in [John 1:51](../01/49.md).
# before Abraham was, I AM
As God the Son, Jesus knows God the Father unlike anyone else. Possible meanings are 1) Jesus was identifying himself as Yahweh by saying, "I am God" or 2) Jesus was saying, "before Abraham existed, I existed."
The Jewish leaders are outraged at what Jesus has said. Here it is implied that they wanted to kill him because he had made himself equal to God. AT: "Then they picked up stones to kill him because he claimed to be equal with God" (See: [[rc://en/ta/man/translate/figs-explicit]])