It shall be established
kuwn (koon)
to be erect (i.e. stand perpendicular); hence (causatively) to set up, in a great variety of applications
for ever
`owlam (o-lawm')
concealed, i.e. the vanishing point; generally, time out of mind (past or future), i.e. (practically) eternity; frequentatively, adverbial (especially with prepositional prefix) always
as the moon
yareach (yaw-ray'-akh)
the moon -- moon. Yrechow.
and as a faithful
'aman (aw-man')
to build up or support; to foster as a parent or nurse; figuratively to render (or be) firm or faithful, to trust or believe, to be permanent or quiet; morally to be true or certain
witness
`ed (ayd)
concretely, a witness; abstractly, testimony; specifically, a recorder, i.e. prince -- witness.
in heaven
shachaq (shakh'-ak)
a powder (as beaten small): by analogy, a thin vapor; by extension, the firmament -- cloud, small dust, heaven, sky.
Selah
celah (seh'-law)
suspension (of music), i.e. pause -- Selah.