400
The idiom and bible story referenced in the following verse:
"A poet reads his crooked rhyme /
Holy, holy is his sacrament /
Thirty dollars pays your rent /
On Bleeker Street"
What is 30 pieces of silver, and the wages of Judas Iscariot for betraying Jesus?
(Source: Bleeker Street, 3 A.M by Simon and Garfunkel)