Do you keep them in a coop/cage when you are not around? You really shouldn't leave such young rabbits unsupervised in a house. There is so much danger and trouble they can get into. If they are cooped, you can put a litter pan where they usually go. You should use litter made from recycled newspaper like "Yesterday's News" or Kountry Kritters". They are at the right age to start "litter training", but you have to make sure they know what it's for. Locate the pan where ever they pee. That will be the first thing get control over (the "poops" control will come later).
Chewing on your furniture can make them sick. Furniture wood has oils and finishes on it that is not good for a rabbit. Give the bunnies an area that you have "bunny-proofed". Maybe a playpen area. We use puppy "X-Pens" that fold up when not in use.
Try sitting on the floor with a treat and let them come to you for the treat. Don't chase them or grab them. Sit and pet them, let them run away and come back... They have to come to trust you. (It could take several days... be patient.) They are getting to the age where instincts take over. Their first instinct is to run away. Spaying will help, but you have to work at it. Watch the treats, don't spoil them or over do it. You can use Cheerio's (oat cereal) as a treat for such young bunnies. Have patience. Certain breeds are more "nervous" or high strung than others. But all will respond to kindness and consistancy. They are creatures of habit, so follow a routine (feeding, play time, treats, brushing/grooming, etc.) and they will get used to it.