'Circle' in the Bible

He hath traced a fixed circle over the waters, unto the confines of light and darkness.

When he prepared the heavens I was there; when he ordained the circle upon the face of the deep;

It is he that sitteth upon the circle of the earth, and the inhabitants thereof are as grasshoppers; that stretcheth out the heavens as a gauze curtain, and spreadeth them out as a tent to dwell in;