This was an indirect rebuke because he had not gone with them on the way back home. This caused them to worry about him. Alternate translation: "you should not have done this to us!" (See: [[rc://en/ta/man/translate/figs-rquestion]])
This word is often used to show the beginning of a new or important event. It also can be used to show where the action begins. If your language has a phrase that is used in this way, consider whether it would be natural to use it here.