not rendering evil for evil, or reviling for reviling; but instead blessing; knowing that to this were you called, that you may inherit a blessing.

 (iii) His defence must be given with reverence. That is to say, any argument in which the Christian is involved must be carried on in a tone which God can hear with joy. No debates have been so acrimonious as theological debates; no differences have caused such bitterness as religious differences. In any presentation of the Christian case and in any argument for the Christian faith, the accent should be the accent of love. 