Is Assurance of Salvation Presumptuous?
Roman Catholics consider assurance of salvation one of the greatest of Protestant heresies. They believe such certainty is presumptuous. Yet when a person rejects assurance they reveal that they are trusting in something other than (or something in addition to) Jesus Christ for their right standing before God. Is not trusting partly in self for salvation the very biblical definition of pride and presumption?
It is the very nature of assurance that we look to Christ for what He has done for us, not what we have done (or will do) for Him. Christ alone makes us right before God and to believe the truth of assurance is simply to believe God's promise to us, that He is completely satisfied when He sees us in Christ. I can think of no greater presumption than to disbelieve God's promise that he has forgiven our sins in Christ.