The Liverpool captain has been rested by Benitez in recent weeks because of a broken toe but he played in both Euro 2008 qualifiers.
Benitez was happy with Gerrard playing all but 20 minutes of England's games against Israel and Russia at Wembley.
"I had confidence in them because our doctor was talking with them, we knew the situation and I was talking to Gerrard," he said on Sky Sports News .
"We knew that he could play, he wanted to play. I think he is a hero for England now and this is very positive for him and for us and everybody's happy."