John Chrysostom — as excerpted in the Catena Aurea on Luke 8:40-48

“(ubi sup.) Now our Lord did not immediately discover her, for this reason, that by shewing that all things are known to Him, He might make the woman publish what was done, that the miracle might be free from all suspicion. Hence it follows, And when the woman saw that she was not hid, she came trembling.”