One of the new things I noticed in a visit to Petra last year was the Bedouin actors demonstrating various aspects of daily life. Many of these customs are similar to those we read about in the Bible. This photo shows a man using an animal skin as a churn.
The writer of Proverbs speaks of churning in giving advice about those who stir up strife.
If you have been foolish in exalting yourself Or if you have plotted evil, put your hand on your mouth. For the churning of milk produces butter, And pressing the nose brings forth blood; So the churning of anger produces strife. (Proverbs 30:32-33 NAS)
When the three men came to the Patriarch Abraham to announce the birth of Isaac, Abraham showed hospitality to them. He provided water so they could wash their feet. He told Sarah to prepare bread. He took a young calf from the herd and had the servants prepare it. Then the text says,
He took curds and milk and the calf which he had prepared, and placed it before them; and he was standing by them under the tree as they ate. (Genesis 18:8 NAS)
Read Genesis 18 for the complete account.