Mine eyes
`ayin (ah'-yin)
an eye; by analogy, a fountain (as the eye of the landscape)
fail
kalah (kaw-law')
to end, whether intransitive (to cease, be finished, perish) or transitived (to complete, prepare, consume)
for thy salvation
yshuw`ah (yesh-oo'-aw)
something saved, i.e. (abstractly) deliverance; hence, aid, victory, prosperity -- deliverance, health, help(-ing), salvation, save, saving (health), welfare.
and for the word
'imrah (im-raw')
commandment, speech, word.
of thy righteousness
tsedeq (tseh'-dek)
the right (natural, moral or legal); also (abstractly) equity or (figuratively) prosperity -- even, (that which is altogether) just(-ice), (un-)right(-eous) (cause, -ly, -ness).