The Four

THUS have I heard.
On a certain occasion the Exalted One was staying near Sāvatthī in Jeta Grove, the Anāthapiṇḍika Park.
Then the Exalted One addressed the brethren, saying:
"Brethren."
"Yes, lord," replied those brethren to the Exalted One.
The Exalted One said:
"There are these four elements, brethren.
Which are the four?
Earth-element,
water-element,
heat-element,
air-element:
these are the four.