Acts 10:9-15

The next day, as they went on their journey and drew near the city, Peter went up on the housetop to pray, about the sixth hour. Then he became very hungry and wanted to eat; but while they made ready, he fell into a trance and saw heaven opened and an object like a great sheet bound at the four corners, descending to him and let down to the earth. In it were all kinds of four-footed animals of the earth, wild beasts, creeping things, and birds of the air. And a voice came to him, “Rise, Peter; kill and eat.”

But Peter said, “Not so, Lord! For I have never eaten anything common or unclean.”

And a voice spoke to him again the second time, “What God has cleansed you must not call common.”

Hebrews 11:6

But without faith it is impossible to please Him, for he who comes to God must believe that He is, and that He is a rewarder of those who diligently seek Him.