For thou hast said
'amar (aw-mar')
to say (used with great latitude)
in thine heart
lebab (lay-bawb')
the heart (as the most interior organ)
I will ascend
`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)
into heaven
shamayim (shaw-mah'-yim)
air, astrologer, heaven(-s).
I will exalt
ruwm (room)
to be high actively, to rise or raise (in various applications, literally or figuratively)
my throne
kicce' (kis-say')
covered, i.e. a throne (as canopied) -- seat, stool, throne.
above
ma`al (mah'al)
the upper part, used only adverbially with prefix upward, above, overhead, from the top, etc. -- above, exceeding(-ly), forward, on (very) high, over, up(-on, -ward), very.
the stars
kowkab (ko-kawb')
a star (as round or as shining); figuratively, a prince -- star(-gazer).
of God
'el (ale)
strength; as adjective, mighty; especially the Almighty (but used also of any deity)
I will sit
yashab (yaw-shab')
to sit down (specifically as judge. in ambush, in quiet); by implication, to dwell, to remain; causatively, to settle, to marry
also upon the mount
har (har)
a mountain or range of hills (sometimes used figuratively) -- hill (country), mount(-ain), promotion.
of the congregation
mow`ed (mo-ade')
appointed (sign, time), (place of, solemn) assembly, congregation, (set, solemn) feast, (appointed, due) season, solemn(-ity), synogogue, (set) time (appointed).
in the sides
yrekah (yer-ay-kaw')
the flank; but used only figuratively, the rear or recess -- border, coast, part, quarter, side.
of the north
tsaphown (tsaw-fone')
hidden, i.e. dark; used only of the north as a quarter (gloomy and unknown) -- north(-ern, side, -ward, wind).