Jacques Villeneuve, who is also a TV pundit for Sky Italia, suggested that Hamilton's Christian faith is not genuine.
"He confuses Formula One with Hollywood," he said. "Everything he does is staged. He portrays himself on social media like he is Jesus."
Villeneuve's comments come after Hamilton credited God for his win at the German Grand Prix last weekend.
The four–time world champion described the outcome of the dramatic race as divine intervention from God.
"Today is one of the most unbelievable days for me because... I prayed as I always do before the race and my prayers were really answered. It freaks me out a little bit more than normal and then to see the kind of biblical storm afterwards... " Hamilton said after his win.
"Things don't always go the way... you throw the ball up serve and don't always hit an ace. Today every single lap was as I planned."
The comments did not sit well with Villeneuve who said: "The way he knelt next to his car after his problem in qualifying looked like the suffering of Christ.
"And what he said afterwards was the Sermon on the Mount. Then he gestured so dramatically on the podium that everyone could see who sent the sudden rain."
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