“What about other religions?”

Romans 2:14-15
"...Indeed, when Gentiles, who do not have the law, do by nature things required by the law, they are a law for themselves, even though they do not have the law, since they show that the requirements of the law are written on their hearts, their consciences also bearing witness, and their thoughts now accusing now defending them. ..."

Acts 4:12
"...Salvation is found in no-one else, for there is no other name under heaven given to men by which we must be saved."