A source claimed that Gibson "paced back and forth, furiously telling the congregation that he would not stand by and be judged and scrutinized."
"Mel got up on his stage -- the altar -- and went off. He tried to intimidate the parishioners by staring at everyone with his angry eyes. Mel even threatened to shut down the church if people kept gossiping about him. The bottom line is that if Mel hadn't cheated on his wife and gotten his Russian girlfriend pregnant, there wouldn't be much to gossip about."
The source added, "He created this mess, and now he's trying to control it."
"Mel's completely lost it. [His] holier than thou world is falling apart around him -- all these years he's been preaching the good holy word, and now that the wizard's curtain has been pulled back, we find that Mel hasn't been practicing what he preaches."
Gibson has recently been upfront about his personal affairs, telling former 'Tonight Show' host Jay Leno last week, "My wife and I, our marriage ended three years ago and we've been separated ever since then... When it's all said and done, I did a pretty good hatchet job on my marriage myself. I'm to blame. If you're inclined to judge, put it here."