'Earth Below' in the Bible

And I will give wonders in the heaven above and signs on the earth below, blood, and fire, and vapour of smoke:

(But what does "He ascended" mean if not that He also [first] descended to the lower parts of the earth [i.e., to the earth below]? [Note: Of the three principal interpretations given to this verse: a) Christ descended to earth, b) Christ descended to the grave, c) Christ descended to Mary's womb. The first is to be preferred. See John 3:13; 6:38, 62].