Midrasz do Wyjścia 38:28

And Jacob sat in the land (Gen. 37:1). Whenever Scripture uses the expression and he sat (also translated “and he dwelt”), it connotes misfortune: And Israel sat in the land of Egypt, in the land of Goshen, … and the time drew near that Israel must die (Gen. 47:29); And the people sat down to eat and drink, and rose up to make merry (Exod. 32:37); And there fell of the people on that day three thousand men (Exod. 38:28); And they sat down to eat bread; and they lifted up their eyes and looked, and, behold, a caravan of Ishmaelites (Gen. 37:25); And Judah and Israel sat safely (I Kings 5:5); And the Lord raised up an adversary against Solomon (ibid. 11:14); And Israel sat among the cedars, etc., and the people began to commit harlotry (Num. 25:1). You may explain every other use of “and he sat” with this negative implication. In this instance And Jacob sat is followed by and Joseph brought evil report of them unto his father (Gen. 37:2).