Verses with the word austere in the New Testament (2 verses):

Luke 19:21
For I feared thee, because thou art an austere man: thou takest up that thou layedst not down, and reapest that thou didst not sow.

Luke 19:22
And he saith unto him, Out of thine own mouth will I judge thee, thou wicked servant. Thou knewest that I was an austere man, taking up that I laid not down, and reaping that I did not sow: