Many have agreed in the past argument that there is only one God across all regions. The truth of this is a question humans might never answer at least in our lifetime. Many have gone a step further to suggest homogenization of Judaism, Islam and Christianity noting that they have a lot in common. Others have suggested that Allah is just another word for God, and can be considered as a synonym for the biblical God.
However, unlike Islam and Judaism which share monotheistic approach to religion, Christianity has the holy trinity.
Many scholars have attempted to expound the point of convergence between Islam and Christianity. As a matter of fact, some have gone as far as suggesting that Allah and God are the same. Such scholars have argued that Christians and Muslims ultimately pray to the same God. Others have said that Allah is a form of translation of the biblical God. Attempting to create a point of convergence between God and Allah raises some important questions worth exploring.
One scholar while arguing that Allah is not the same and biblical God noted that while the holy bible states that God cannot be tempted by evil and neither does God tempt anyone with evil, the Quran says that hypocrites seek to deceive Allah, but it is Allah Who deceives them. The scholar argues that the respective descriptions describe two different deities.
Another area often cited in supporting the difference between Allah and the biblical God is the fact that while Christians believe in the trinity where there is God the Father, the son and the holy spirit. Muslims believe in a monotheistic God, just like the Jews do.
Additionally, there are Muslim documents which promote the perspective that there is no difference between Allah and the God of Abraham. Similarly, various Christian leaders have embraced this theology and are teaching the same to their congregations. Considering that average people spend so little time reading their bible of Qurans, such people are likely to be both theologically and spiritually under-informed and can be easily manipulated with things that are taught in the pulpit. Some have suggested this approach as an attempt to homogenize various religions, Islam and Christianity included.
In general, the answer to our question could attract a Yes and No answer. While the words bear the same meaning, no proven relationship can exist between the two.