You order a table online, and it shows up in a not-table-shaped box that says "some assembly required" on it. In the box, under a pile of wood-like pieces and odd metal bits, you find a booklet with the word "Instructions" on the cover. You leaf through the booklet, and quickly find that the word "Instructions" on the cover is the only word you can understand in its 80-plus pages.
At least there are pictures. But when you try use them to figure out how to put it together...just how the pictures relate to the wood-like pieces and odd metal bits is anything but clear.
At the end of a frustrating day, you've developed a working translation for some of the text ("insert tab A into slot B, then cry, curse, and hit with hammer"), but you still have a pile of wood-like pieces and odd metal bits - not a table. You had the needed information, but how it was given made it useless.
It's like that with saying something is wrong - that's the needed information, but how it is given can make it useless.
So how do you say something is wrong? The reading from Romans has the answer - you say it in love. More on this tomorrow.