The sword of the Spirit, the word of God (usually)

The other night I was reading the Bible to Jadon, & I read the verse "if you have a sore on your head or your chin, you must go to the priest and let him examine it" (Leviticus 13:29). Oftentimes I wonder if Jadon is actually listening to what I read as he puts on his pajamas and takes his medicine for the night, but as he was going about his business, he earnestly asked, "But if they already have a sword on their head or chin, wouldn't they already be dead?"