And the LORD said to Samuel, Behold, I will do a thing in Israel, at which both the ears of every one that heareth it shall tingle. The Lord said to Samuel - He probably saw nothing, and only heard the voice; for it was not likely that any extraordinary representation could have been made to the eyes of a person so young. He heard a voice, but saw no similitude.
The ears - shall tingle - It shall be a piercing word to all Israel; it shall astound them all; and, after having heard it, it will still continue to resound in their ears.