Why is building of temples and churches and the propagation of any religion other than Islam not allowed in Islamic countries like Saudi Arabia?
1. Example of selecting a Maths teacher:
Suppose you are a principal of a school and you have to select a Mathematics teacher. It is obvious that you will interview the candidates. If one teacher says that 2 + 2 = 3, the other says 2 + 2 = 4 and the third says 2 + 2 = 5 whom will you select? Since you know mathematics is logical, you will never select or allow a person to teach mathematics who doesn’t even know the basics of arithmetic that 2 + 2 = 4.
2. Where religion is concerned Muslims are experts:
Similarly in the field of religion, Muslims are the best and Qur’an clearly mentions in Surah Ale Imran, Chapter 3, verse 19 (3:19):
“The Religion before Allah is Islam (submission to His will)”. [Al-Qur’an 3:19]
It is further mentioned In Surah Ale Imran Chapter 3, verse 85 (3:85)
“If anyone desires a religion other than Islam (submission to Allah), never will it be accepted of him; and in the Hereafter he will be in the ranks of those who have lost (All spiritual good).” [Al-Qur’an 3:85]
3. No other religious scripture claims that its religion alone is true.
There is no other religious scripture on the face of the earth besides the Qur’an which says that only its religion is true, correct and acceptable to Almighty God, and that all the other religions are false and hence not acceptable to Almighty God.
If you are a school principal who knows Maths, you will never allow a person to teach Maths in your school who does not know Maths. Similarly Muslims, who are experts in the field of religion and know that Islam is the only true religion, will not allow anyone in the country of Saudi Arabia to preach any other religion besides Islam. Muslims also know that what the true concept of Almighty God i.e. Allah (SWT) is, and thus we will not permit anyone to build, in the country of Saudi Arabia, a place of worship where they worship anyone besides Allah (swt).
And Allah Knows Best.