None of his sons did a eulogy at the funeral service in Grand Rapids, or at the one at the Natinal Cathedral.  Two of his sons did scripture readings at the service in Grand Rapids, one of them from the 23rd Psalm and the other from Paul's Letter to the Romans, and the other son and his daughter did scripture readings during the service at the National Cathedral.  

If you're referring to Steven's reading, the "very rightwing script, weird to the bone" was directly from the New Testament.