Genesis 42:22
"Reuben answered them, saying, 'Did I not tell you, ‘Do not sin against the boy;' and you would not listen? Now comes the reckoning for his blood.'"
Reuben used this opportunity to remind his brothers that he was the one who argued to save Joseph's life, as reflected in Genesis 37:21. But it was also a kind of "I told you so" statement and the minds of his brothers were unlikely to be changed by his words.
Ruben included himself in their thinking however, as he concluded: "Now comes 'the reckoning' for his blood." Sin has consequences. Here in this chapter, the recognition that they had brought this trouble upon themselves becomes clear and the consequences were about to occur.
As it is true for so many liars, the trumped-up lie they had told Jacob about Joseph's "death" had become real to them as well. Jacob believed the story and so did they. They could not imagine in their wildest dreams that Joseph was alive after all those years.
The Truth
“If we claim to have fellowship with him and yet walk in the darkness, we lie and do not live out the truth.” (1 John 1:6)
