Acts 10: 9-16
Next day, while they were still on their journey and had only a short distance to go before reaching the town, Peter went to the housetop at about the sixth hour to say his prayers. He felt hungry and was looking forward to his meal, but before it was ready he fell into a trance and saw heaven thrown open and something like a big sheet being let down to earth by its four corners; it contained every kind of animal, reptile and bird.
A voice then said to him, ‘Now, Peter, kill and eat!’
But Peter answered, ‘Certainly not, Lord; I have never yet eaten anything profane or unclean.’
Again, a second time, the voice spoke to him, ‘What God has made clean, you have no right to call profane.’
This was repeated three times, and then suddenly the container was drawn up to heaven again.