In this exploration of An Unholy Alliance, Dr. Michael Youssef compares Islamic and biblical conceptions of sin, highlighting differences in origin, accountability, and the need (or absence) of a savior. We delve into how the Quran frames sin as primarily a failure to obey God with a system of good works, versus the biblical view of universal sin and grace through Christ. A thoughtful discussion on theological foundations, moral responsibility, and the implications for interfaith dialogue and Christian witness in a plural world.