So he built an altar there, called on the name of the Lord, and pitched his tent there. Isaac’s servants also dug a well there. [Genesis 26:25]
When Abraham or Isaac or Jacob moved to a new place, they did the necessary. Built an altar and worshiped the Lord their God. Pitched a tent and dwelled in the temporary place.
And dug a well. Dug deep. To tap into a source of water hidden beneath the ground.