We read in Parashat Vayigash of Yaakov's descent from Canaan to Egypt, where he settled to escape the famine that devastated the region. The Torah tells (beginning of chapter 46) that Yaakov stopped along his journey in the city of Be'er Sheva. According to the Midrash (Bereishit Rabba 94:4), in Be'er Sheva Yaakov cut wood from the sycamore trees that his grandfather, Avraham, had planted in that city many years earlier. Yaakov brought this wood with him to Egypt in anticipation of his descendants' construction of the Mishkan from sycamore wood after their departure
