be as old as Methuselah

be as old as Methuselah

To be very old or elderly. In the Bible, Methuselah lived 969 years. I know I'll have a long life because my grandparents were as old as Methuselah when they died. Of course she can't use a smartphone, she's as old as Methuselah!
See also: Methuselah, old
References in classic literature ?
You will be as old as Methuselah, if you wait till I am your wife.
A man may live to be as old as Methuselah,' said Mr.
At that time he looked to be as old as Methuselah but then strangely, his appearance never altered throughout the succeeding decades until the time of his death.
I calculate that by the end of the season I will be as old as Methuselah.
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