The implied information is that Moses understood that the Israelites knew that he had killed an Egyptian the day before ([Acts 7:28](./26.md)). (See: [[rc://en/ta/man/translate/figs-explicit]])
"After 40 years passed." This was the amount of time Moses had been in Midian. AT: "Forty years after Moses fled from Egypt" (See: [[rc://en/ta/man/translate/figs-explicit]])