This question already has an answer here:
Christians pray to prophet Jesus, his mother Mary and even to Jibril.
Additionally Quran mentions case of Allah's name being called in synagogues and churches.
For had it not been that Allah checks one set of people by means of another, monasteries, churches, synagogues, and mosques, wherein the Name of Allah is mentioned much would surely have been pulled down. Verily, Allah will help those who help His (Cause). Truly, Allah is All-Strong, All-Mighty. Quran 22:40
I have confusion because of above verse. Do muslims really worship same deity as Christians?