'Depths of the Earth' in the Bible

But those who seek my life to destroy it,Will go into the depths of the earth.

You who have shown me many troubles and distressesWill revive me again,And will bring me up again from the depths of the earth.

In whose hand are the depths of the earth,The peaks of the mountains are His also.

My frame was not hidden from You,When I was made in secret,And skillfully wrought in the depths of the earth;