Interviewer kept saying "if you're successful"

Hi, I had an interview for M&S foodhall. I booked the first interview slot. They were only interviewing people for two days. I'd say the interview overall went fine, but the manager that was interviewing me kept on saying "If you're successful" then this and that will happen. He was stressing on it. I don't know. He said i'll hear no later by Thursday (as the last day they were interviewing was on wednesday). It's Saturday now, i havent heard anything back, and it still says "under consideration" on my application. I don't know what this is a sign of. Anyone has any idea?