Acts 10:9 (KJV)

And when he looked on him, he was afraid, and said, What is it, Lord? And he said unto him, Thy prayers and thine alms are come up for a memorial before God.

And now send men to Joppa, and call for one Simon, whose surname is Peter:

He lodgeth with one Simon a tanner, whose house is by the sea side: he shall tell thee what thou oughtest to do.

And when the angel which spake unto Cornelius was departed, he called two of his household servants, and a devout soldier of them that waited on him continually;

And when he had declared all these things unto them, he sent them to Joppa.

And he became very hungry, and would have eaten: but while they made ready, he fell into a trance,

And saw heaven opened, and a certain vessel descending upon him, as it had been a great sheet knit at the four corners, and let down to the earth:

Wherein were all manner of fourfooted beasts of the earth, and wild beasts, and creeping things, and fowls of the air.

And there came a voice to him, Rise, Peter; kill, and eat.

But Peter said, Not so, Lord; for I have never eaten any thing that is common or unclean.