In rabbinical tradition, Isaac was 37 years old at the time of his bound, which contrasts with popular depictions of Isaac as a kid. The text does not say how long it took Abraham to build the altar, but based on the number of stones used in its construction and their size, scholars estimate that it took about three months. Abrahmam Nunnally, a 19th-century scholar of Jewish law, wrote that it is "not easy" to calculate the exact age of Isaac at this point since the text only says he was "grown up." Many modern readers view the story of Abraham's binding of Isaac as extremely disturbing due to the choice made by both parties involved. However, in the biblical text itself, there is no mention of any alternative option being considered, nor is there any indication that either party wanted to change things. In fact, the binding of Isaac is mentioned by name only in a single passage (Genesis 22:9), while the rest of the book tells us only that Abraham sacrificed him as an offering. This shows that even though we may have different opinions about what happened at Mount Moriah, that doesn't mean the Bible gives us no information about it at all. It simply means we will never know for sure unless more is said about it in future books of the Old Testament.