NG'UONO means grace:
God's grace endures forever and His love is in abundance.Those who cry painfully and suffer have hope found in God's grace. Humble yourselves and find salvation, come back to Him so that He may not pour His wrath on you!
Biblical context:
Jerusalem as an Adulterous Wife
Ezekiel 16:13,15,17
[13]Thus wast thou decked with gold and silver; and thy raiment was of fine linen, and silk, and broidered work; thou didst eat fine flour, and honey, and oil: and thou wast exceeding beautiful, and thou didst prosper into a kingdom.
[15]But thou didst trust in thine own beauty, and playedst the harlot because of thy renown, and pouredst out thy fornications on every one that passed by; his it was.
[17]Thou hast also taken thy fair jewels of my gold and of my silver, which I had given thee, and madest to thyself images of men, and didst commit whoredom with them
Cross reference:
Titus 2:11 "For the grace of God that bringeth salvation hath appeared to all men".