In this article, redemption in Judaism and Christianity are being reviewed, and all religions have been introduced by the Qur’an as being redemptive within their time span. Redemption in Christianity and Judaism after the advent of Islam, which is subject to basic controversy, however, is approached with two responses. The first response is the theory of exclusivism, which is viewed as incorrect by the writer, and the second is that all religions are redemptive, which is accepted as true. For the latter, some evidences from the Qur’an are given through the verses as follows: 1. Verses indicating the unity of all religions, 2. The verses that introduce faith and good deeds as redemptive, 3. The verses that regard the Gospel and Torah as showing the right way and the Qur’an as confirming them, 4. The verses that views God as Just, 5. The verses that enjoin the Prophet to call the people of the Book toward common principals of religions, and 6. The verses that condemn “mutual boasting” (tafakhur) of Muslims and the people of the Book to each other.