CREATE TABLE table_18837 ("Club" TEXT, "Played" TEXT, "Won" TEXT, "Drawn" TEXT, "Lost" TEXT, "Points for" TEXT, "Points against" TEXT, "Tries for" TEXT, "Tries against" TEXT, "Try bonus" TEXT, "Losing bonus" TEXT, "Points" TEXT)

How many points for when the points was 53?
SELECT "Points for" FROM table_18837 WHERE "Points" = '53'
SELECT "Points for" FROM "table_18837" WHERE "Points" = '53'