be as old as Methuselah

be as old as Methuselah

if someone is as old as Methuselah, they are very old
Usage notes: Methuselah was a character from the Bible who lived until he was 969.
I was a young boy at the time so to me he looked as old as Methuselah but he was probably only in his sixties.
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.