Now then O LORD
Yhovah  (yeh-ho-vaw')
(the) self-Existent or Eternal; Jehovah, Jewish national name of God -- Jehovah, the Lord.
'elohiym  (el-o-heem')
angels, exceeding, God (gods)(-dess, -ly), (very) great, judges, mighty.
of Israel
Yisra'el  (yis-raw-ale')
he will rule as God; Jisrael, a symbolical name of Jacob; also (typically) of his posterity: --Israel.
let thy word
dabar  (daw-baw')
a word; by implication, a matter (as spoken of) or thing; adverbially, a cause
be verified
'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
which thou hast spoken
dabar  (daw-bar')
perhaps properly, to arrange; but used figuratively (of words), to speak; rarely (in a destructive sense) to subdue
unto thy servant
`ebed  (eh'-bed)
a servant -- bondage, bondman, (bond-)servant, (man-)servant.
David  (daw-veed')
loving; David, the youngest son of Jesse -- David.