2) Ar – Rahman
Allah has said, “All those in the heavens and the earth will come to the Beneficent God obediently” (Qur’an, 19:93).
“My mercy encompasses all things and i shall decree it for those who have taqwa” (7:56)
“O Man, What has made you careless concerning your Lord, the kind ” (82:6)
“Al-Rahman al-Rahim” are two of the Attributes of Allah which remind people of His mercy, of the fact that His act of affecting goodness and rewards reach whomsoever He pleases, thus warding off evil from them. “Al-Rahman” and “al-Rahim” are two concurrent Attributes of His each conveying more meanings of mercy than the other.
“Al-Rahman” is an Attribute specifically relevant to Allah; none besides Him can be called or referred to as such, whereas “al-rahim” can be applied to people: One may be described as “rahim,” merciful or kind, but a human cannot be “rahman”.
In the Holy Qur’an, we read:
“In the Name of Allah, the Most Beneficent, the Most Merciful” (Qur’an, 1:1); “The beneficent God is firm in power” (Qur’an, 20:5).
It is an Attribute demonstrating that mercy can be possible only through Him. It means “the One Who grants mercy beyond which there is no other mercy at all and the like of which does not at all exist.”
Though derived from mercy, “al-Rahman” is both a noun and an adjective. Neither contradicts the other.
It is commonly known that mercy means: one’s desire or power of will to bring goodness to one who is much less than him in status.
Source : AlIslam