“Allah” is not the “Muslim God”. Allah is the Arabic word for God, used by Muslims and Arabic speaking Christians long before Islam existed (the name Allah was used). So, Muslims call Him Allah, the Jews call Him Elohim, but we believe He is the same God, the God of Abraham, Ishmael, Isaac, Jacob, Enoch, Adam, Joseph, Moses, David, Jesus and Muhammad (Peace be upon all of them).
Allah is a unique term since it has no gender and no plural forms. He has 99 names, which describe His attributes. Allah is unlike anyone or anything imaginable.
Ibn al-Qayyim (may Allah have mercy on him) described the greatness of Allah in a most beautiful way: He is controlling the affairs of all the kingdoms. He commands and prohibits, creates and gives provision, and gives death and gives life. He raises and lowers people’s status, alternates night and day, gives days (good and not so good) to men by turns, and causes nations to rise and fall so that one nation vanishes and another emerges.
His command and decree are carried out throughout the heavens and on earth, above it and below it, in the oceans and in the air. He has knowledge of all things and knows the number of all things. He hears all voices, and does not mistake one for another; He hears them all, in all the different languages and with all their varied requests and pleas.