Genesis 31:41
31:41 This was my lot for twenty years in your house: I worked like a slave for you – fourteen years for your two daughters and six years for your flocks, but you changed my wages ten times!
Genesis 37:28
37:28 So when the Midianite merchants passed by, Joseph’s brothers pulled him out of the cistern and sold him to the Ishmaelites for twenty pieces of silver. The Ishmaelites then took Joseph to Egypt.