Genesis 18:7; Genesis 29:17; Genesis 33:13

7 Abraham also ran to the herd, and took a tender and choice calf and gave it to the servant, and he hurried to prepare it.
17 And Leah's eyes were weak, but Rachel was beautiful of form and face.
13 But he said to him, "My lord knows that the children are frail and that the flocks and herds which are nursing are a care to me. And if they are driven hard one day, all the flocks will die.