Genesis 26:19-21

26:19 When Isaac’s servants dug in the valley and discovered a well with fresh flowing water there, 26:20 the herdsmen of Gerar quarreled with Isaac’s herdsmen, saying, “The water belongs to us!” So Isaac named the well Esek because they argued with him about it. 26:21 His servants dug another well, but they quarreled over it too, so Isaac named it Sitnah.