40 days and 40 nights, tempted and yet undefiled

Today is Ash Wednesday and Lent is here, so let's welcome it with one of those classic Bono quotes:
"I met this guy once in a mental hospital I was visiting. He introduced himself as Jesus Christ. I just said, 'Haven't we met before?' He said nothing. I asked him why, if he was the Son of God, was he in a mental hospital? He said, 'Because it's my 40 days and 40 nights in the wilderness.' "