 If it is true that God withholds our ability to be certain of his existence for the sake of our freedom, then it is natural to conclude that humans will lack freedom in heaven. And it is anyways common to traditional Jewish, Christian, and Muslim theologies to maintain that humans cannot sin in heaven. Even so, traditional Christian theology at least maintains that human persons in heaven are free. What sort of freedom is in view here, and how does it relate to mundane freedom? Two good recent discussions of these questions are Pawl and Timpe (2009) and Tamburro (2017).