# Suddenly
This word explains that no one expected to hear the sound or to have it fill the house.
# a sound like the rush of a violent wind came from heaven
Possible meanings are 1) "heaven" refers to the place where God lives. Alternate translation: "a sound came from heaven" or 2) "heaven" refers to the sky. Alternate translation: "a sound came from the sky"
# the whole house
This may have been a house or a larger building.