1 Corinthians 10:3-4

10:3 and all ate the same spiritual food, 10:4 and all drank the same spiritual drink. For they were all drinking from the spiritual rock that followed them, and the rock was Christ.

1 Corinthians 10:16-17

10:16 Is not the cup of blessing that we bless a sharing in the blood of Christ? Is not the bread that we break a sharing in the body of Christ? 10:17 Because there is one bread, we who are many are one body, for we all share the one bread.