As a Calvinist I remember shaming other Christians for “stealing God’s glory” by suggesting they played any role in their salvation. I insisted they would be “boasting” to believe that they chose to come to Christ unless they first admitted that God irresistibly changed their nature to make them want to come.
For whose sins did Jesus die? Who are the elect? Is the sinner’s prayer biblical? What exactly is T.U.L.I.P.? Ever had questions like these?
Calvinists are notorious for asking the unsuspecting believer, “Why did you believe in Christ and someone else does not; are you smarter, or more praiseworthy in some way?” I asked this question more times than I can remember as a young Calvinist.
If someone disagreed with me, my presumption was that they must not really understand my perspective. So, instead of attempting to listen and objectively evaluate their arguments, I focused on restating my case more clearly, confidently, and dogmatically. If I did not fully understand what they were saying I would often label and dismiss them instead of taking the time to fully evaluate their point of view.
Piper is free to have and express his opinion about Arminians and exegesis, but it would be helpful if he would at least reveal which Arminian Bible scholars he has read and found wanting and why. Instead his response was merely dismissive and ought not to be taken very seriously—unless one takes whatever Piper says seriously just because Piper says it.