Matthew Poole and continuators on Ephesians 4:9

9 (Now that he ascended, what is it but that he also descended first into the lower parts of the earth? .

The Apostle interprets the Psalmist, and concludes, that David when he foretold Christ's Glorification, or Ascending up to Heaven, did likewise foresee his humiliation and descent to the earth, q. d. when David speaks of God in the Flesh ascending up on high, he doth thereby imply, that he should first descend to the Earth.

Either simply the Earth as the lowest part of the visible World, and so opposed to Heaven from whence he came down, Ioh. 3.13. and 6.33.38, 41, 42, 50, 51. or the Grave and state of the Dead; or both rather, implying the whole of his Humiliation in opposition to his Ascending, taken for the whole of his Exaltation.