To announce the Gospel is a common feature of all Christian denominations and it is fairly simple to think about people of God announcing the word of Christ in the streets. This is proselytism, which is spreading information in the public forum about a particular religion trying to convince some other persons to follow my convictions. However, a process like this is a widespread way to act in all religious groups with a various degree of consideration of individual religious freedom. This paper gives a brief comparative overview of what is proselytism like in Hebrew law, Islamic law, Canon law, LSD Church and Jehovah’s witnesses.