Genesis 26:17-25

So Isaac left that region and camped in the Valley of Gerar, and settled there. Now Isaac again dug [and reopened] the wells of water which had been dug in the days of Abraham his father, because the Philistines had filled them up [with dirt] after the death of Abraham; and he gave the wells the same names that his father had given them. But when Isaac’s servants dug in the valley and found there a well of flowing [spring] water, the herdsmen of Gerar quarreled with Isaac’s herdsmen, saying, “The water is ours!” So Isaac named the well Esek (quarreling), because they quarreled with him. Then his servants dug another well, and they quarreled over that also, so Isaac named it Sitnah (enmity). He moved away from there and dug another well, and they did not quarrel over that one; so he named it Rehoboth (broad places), saying, “For now the LORD has made room for us, and we shall be prosperous in the land.” Then he went up from there to Beersheba. The LORD appeared to him the same night and said, “I am the God of Abraham your father; Do not be afraid, for I am with you. I will bless and favor you, and multiply your descendants, For the sake of My servant Abraham.” So Isaac built an altar there and called on the name of the LORD [in prayer]. He pitched his tent there; and there Isaac’s servants dug a well.