John Gills Exposition of the Bible Commentary - Genesis 44:8
Behold, the money which we found in our sacks mouths ;.... Upon their return from Egypt, the first time they went thither for corn: we brought again unto thee out of the land of Canaan ; which was a full proof of their honesty: they might have kept it until it was called for and demanded of them, but of themselves they brought it with them, as being money not their own; and they did not wait to be examined about it when they came to Egypt again, but of their own accord related the story... read more
Matthew Henry's Complete Commentary - Genesis 44:1-17
Joseph heaps further kindnesses upon his brethren, fills their sacks, returns their money, and sends them away full of gladness; but he also exercises them with further trials. Our God thus humbles those whom he loves and loads with benefits. Joseph ordered his steward to put a fine silver cup which he had (and which, it is likely, was used at his table when they dined with him) into Benjamin's sack's mouth, that it might seem as if he had stolen it from the table, and put it here himself,... read more