# which you are building

"which you are having your workers build" 

# walk in my statutes

"continually obey all my statutes"

# do justice

"carry out all of my laws" or "treat the people whom you are ruling justly."

# keep all my commandments and walk in them

"carefully obey all I tell you to do" 

# I will confirm my promise with you that I had made to David your father

"I will do everything I promised David your father that I would do for you"