Though his excellency
siy' (see)
elevation -- excellency.
mount up
`alah (aw-law')
to ascend, intransitively (be high) or actively (mount); used in a great variety of senses, primary and secondary, literal and figurative (as follow)
to the heavens
shamayim (shaw-mah'-yim)
air, astrologer, heaven(-s).
and his head
ro'sh (roshe)
the head (as most easily shaken), whether literal or figurative (in many applications, of place, time, rank, itc.)
reach
naga` (naw-gah')
beat, (be able to) bring (down), cast, come (nigh), draw near (nigh), get up, happen, join, near, plague, reach (up), smite, strike, touch.
unto the clouds
`ab (awb)
an envelope, i.e. darkness (or density, 2 Chron. 4:17); specifically, a (scud) cloud; also a copse -- clay, (thick) cloud, thick, thicket.