Genesis 26:23-25

Then he went up from there to Beersheba. The LORD appeared to him the same night and said, “I am the God of your father Abraham; Do not fear, for I am with you. I will bless you, and multiply your descendants, For the sake of My servant Abraham.” So he built an altar there and called upon the name of the LORD, and pitched his tent there; and there Isaac’s servants dug a well.