Genesis 37:4

So Esau bore a grudge against Jacob because of the blessing with which his father had blessed him; and Esau said in his heart, “The days of mourning for my father are near; then I will kill my brother Jacob.”

Then Eliab his oldest brother heard when he spoke to the men; and Eliab’s anger burned against David, and he said, “Why have you come down? And with whom have you left those few sheep in the wilderness? I myself know your arrogance and the wickedness of your heart, for you have come down in order to see the battle.”

“For even your brothers and the household of your father, Even they have dealt treacherously with you, Even they have called aloud after you. Do not believe them, although they may say nice things to you.”