1 Samuel 17:17-18
17:17 Jesse said to his son David, “Take your brothers this ephah of roasted grain and these ten loaves of bread; go quickly to the camp to your brothers.
17:18 Also take these ten portions of cheese to their commanding officer. Find out how your brothers are doing and bring back their pledge that they received the goods.
1 Samuel 25:5
25:5 he sent ten servants, saying to them, “Go up to Carmel to see Nabal and give him greetings in my name.