Is penal substitutionary atonement (PSA) a necessary, biblical doctrine, or is it an outgrowth of Western legal thinking? Is PSA on equal footing with honor- and shame-based approaches explanations of the cross, or is it a gospel non-negotiable? In this next exclusive from the 2023 Radius Conference, Aubrey Sequeira, pastor of Evangelical Community Church of Abu Dhabi, explains the importance of this doctrine, responding in depth to the work of Brad Vaughn (f.k.a. Jackson Wu).