Isaac left … in the Valley of Gerar: This was away from the city of Gerar itself, but probably still within 16 kilometers (10 miles).
When he got there, Isaac reopened the wells of his father. Although people opposed him there, Isaac chose not to fight back. He gave up one well after another until God's blessing overcame the opposition. Whenever Isaac reopened a well, even if enemies filled it in, he found water. God blessed Isaac, and nothing could stop it. Finally, the Philistines left Isaac alone.