“A heart sacrifice is not a formula that can be mastered. It is a decision that is intrinsically tied to the personal relationship between us and our God.” HeartDecisionSacrificeFormulasTiedPersonal Relationships Book:When I Lay My Isaac Down: Unshakable Faith in Unthinkable Circumstances Source: When I Lay My Isaac Down: Unshakable Faith in Unthinkable Circumstances