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

Acts 21:35
And when he came upon the stairs, so it was, that he was borne of the soldiers for the violence of the people.

Acts 21:40
And when he had given him licence, Paul stood on the stairs, and beckoned with the hand unto the people. And when there was made a great silence, he spake unto them in the Hebrew tongue, saying,