Exodus 2:14

And he said, Who made thee a prince and a judge over us? He plainly told Moses that he had no business to interfere, not having any authority over the Israelites. Intendest thou to kill me as thou killedst the Egyptian? So there must have been a witness on the previous day who had escaped the watchful eye of Moses. And Moses feared and said, Surely this thing is known. How did this matter become known?