Joshua 6:1, 26

Now the gates of Jericho were securely barred because of the Israelites. No one went out and no one came in.

At that time Joshua pronounced this solemn oath: “Cursed before the LORD is the one who undertakes to rebuild this city, Jericho: “At the cost of his firstborn son he will lay its foundations; at the cost of his youngest he will set up its gates.”