When Jesus met the woman at the well, it wasn’t just "any well", it was Jacob's well. Interestingly, the well is not mentioned anywhere in the Hebrew bible, and yet, by the time of Jesus it was clearly identified as belonging to the patriarch Jacob. Knowing how to find water, and dig wells, was a vital skill in the land of ancient Palestine – Abraham probably dug a well at Beersheba (modern Be'er Sheva) and Isaac certainly did.