The following information was taken from http://www.nabulsi.com/en/. In an authentic hadith, the Prophet (SAW) said,
“Allâh has ninety nine names, a hundred minus one, he who knows them enters paradise”
Dr Nabulsi explains that ‘knowing’ does not simply mean ‘memorizing’ but it implies developing in us the attributes indicated in Allah’s name when it is possible. Thus, the more you know about Allah, the more you would want to be just with others, merciful with others, generous to others and so forth. Knowing Allah’s names is also used in our worship. In the Qur’an, Allah says:
“And (all) the Most Beautiful Names belong to Allâh, so call on Him by them…” (7:180)
The following are some of his names
1 الله Allah: His personal name. It appears 2,967 times in the Qur’an.
2. الرب Ar Rabb: The word Rabb has many connotations, as Master, Chief, Determiner, Provider, Sustainer, Rewarder, Perfecter, Ruler, Creator, Maintainer, Reposer of Properties in things of nature, Developer, Framer of Rules and Laws of the Growth of Things, Regulizer, Foster of things in such a manner as to make them attain one condition after another until they reach their goal of perfection and completion, Arranger of different stages through which they have to pass on their way to completion, Author of all existence Who has sole title to it with no one having any share in it. Thus the word Rabb signifies dozens of processes which a thing passes through in the course of creation and evolution before it reaches its final development. It appears 978 times in the Qur’an.