"He is Allah (God), the Creator, the Originator, The Fashioner, to Him belong the most beautiful names: whatever is in the heavens and on earth, do declare His praises and Glory. And He is the Exalted in Might, The Wise. (Quran 59:24)
“The most beautiful names belong to Allah (God): so call on Him by them and leave the company of those who belie or deny (or utter impious speech against) His Names. They will be requited for what they used to do.” (Quran 7:180)
Prophet Muhammad (peace be upon him) said: 'To God belongs 99 names, 100 minus 1, anyone who memorizes them will enter Paradise; He (God) is odd (odd number, he is the Only One), and He loves odd numbers (such as 99)'.
[S3 v191] Those who remember Allah (always, and in prayers) standing, sitting, and lying down on their sides, and think deeply about the creation of the heavens and the earth, (saying): "Our Lord! You have not created (all) this without purpose, glory to You! (Exalted are You above all that they associate with You as partners). Give us salvation from the torment of the Fire.
Surah 112 describes Allah:
 Say (O Muhammad (peace be upon him)) "He is All‚h, (the) One.  "All‚h-us-Samad (allah The Self-Sufficient Master, Whom all creatures need, (He neither eats nor drinks))  "He begets not, nor was He begotten.  "And there is none co-equal or comparable unto Him."
Theism: Belief in the existence of a god or gods, especially belief in a personal God as creator and ruler of the world. This site Islam Theism is therefore God in Islam.
Those who see terrorism, either as a threat, or a solution need to study and appreciate the beauty and purification of the Names of Allah. Atheists can take the science of these names to purify their souls. The lost can find the rope of Allah extended through the application of these Pure Names.
Supplication - dua’
Any person who is overcome by sadness or grief and supplicates, `O Allah! I am Your servant , son of Your female servant . My forelock is in Your Hand. Your decision concerning me shall certainly come to pass. Just is Your Judgement about me. I invoke You by every Name that You have and that You called Yourself by, sent down in Your Book, taught to any of Your creatures, or kept with You in the knowledge of the Unseen that is with You. Make the Glorious Qur'an the spring of my heart , the light of my chest , the remover of my grief and the dissipater of my concern. ' Surely, Allah will remove his grief and sadness and exchange them for delight . The Prophet was asked "O Messenger of Allah! Should we learn these words'' He said, Yes. It is an obligation on all those who hear this supplication to learn it .