“Say: ‘He is the All-Merciful”(67:29)
Rahman is a special intensive form derived from Raham (mercy). In human beings, raham means ‘tenderness of the heart.’ Yet when attributed to Allah, it means granting blessings and warding off evil, through grace and beneficence.
For this reason, Rahman like the name Allah is not applied to any, but God. Allah’s mercy in this world is general, given to the believer and the unbeliever. He provides for them and gives them health and what they ask for. “ We bestow Our mercy on whoever We will and shall never deny the righteous their reward.” (12:56)
We must always ask for Allah’s mercy and grace and call Him by this name, our deeds by themselves, do not qualify us to go to paradise. Also we ought to begin any important action after saying these words. “In the name of Allah, the All-merciful, the All-compassionate”