1 Samuel 16:19-22

So Saul sent messengers to Jesse to say, “Send me your son David, the shepherd.” Jesse responded by sending David to Saul, along with a young goat, a donkey loaded with bread, and a wineskin full of wine. So David went to Saul and began serving him. Saul loved David very much, and David became his armor bearer. Then Saul sent word to Jesse asking, “Please let David remain in my service, for I am very pleased with him.”