Acts 7:15-16—“So Jacob went down to Egypt; and he died, he and our fathers; and they were transferred to Shechem and placed in the tomb that Abraham bought for a sum of money from the sons of Hamor of Shechem.”

When we compare this text with the relevant passages in Genesis, we appear to be confronted with some discrepancies. Who bought what from whom, and where? Genesis 33:19 informs us that Jacob bought a plot from Hamor, in Shechem. On the other hand, Genesis 23:16-20 explains that Abraham bought an area that included the cave of Machpelah from Ephron, in Hebron. That cave became the sepulcher of Abraham and Sarah, of Isaac and Rebecca, and of Jacob and Lea, because Jacob insisted upon being buried there, as indeed he was (Genesis 49:29-30, 50:13). Looking again at Acts 7, it was ‘our fathers’ that were buried in Shechem, not Jacob. Indeed, Joshua 24:32 states explicitly that Joseph's bones were buried in Shechem.

Yes but, whenever did Abraham buy anything in Shechem? I believe Genesis 12:6-7 gives us the clue. Abraham stopped in Shechem and built an altar. Now then, to build on someone else's property, with that someone looking on, probably won't work very well. I believe we may reasonably deduce that Abraham bought a plot “from the sons of Hamor of Shechem”. The ‘Hamor’ of Jacob's day would be a descendant of the ‘Hamor’ in Abraham's (sons were often named after their fathers). In Genesis 14:14 we read that Abraham “armed his three hundred and eighteen trained servants who were born in his own house”. If we add women and children, the total number of people under Abraham's command was probably over a thousand. Well now, with such a crowd it is not at all unlikely that someone died while they were stopped at Shechem. (People older than Abraham would not have been ‘born in his own house’, but there were doubtless older persons in that crowd.) In that event Abraham would need space for a cemetery, if the plot he had already bought for the altar wasn't big enough, or appropriate. That sort of information may have been available to Stephen from an extra-biblical document, or he may have figured it out as I have done (in his case guided by the Holy Spirit—Acts 7:55).

Going back to Genesis 33:19, it is possible that Jacob increased the area that Abraham had bought, by purchase. But why were all of Jacob's sons buried in Shechem? I believe the answer lies in Genesis 34:27-29. We read that Jacob's sons killed all the men of Shechem, looted everything, but kept the women and children. And what do you suppose they did with the women? So where did you think they found wives for so many men? They got them from Shechem. Since Shechem was the source of their wives and material possessions, it would be a natural place for them to be buried.

To conclude: there is no discrepancy. Both Abraham and Jacob bought land in Shechem. It was Jacob's sons who were buried there, not Jacob himself.