For we being many are one bread, and one body: for we are all partakers of that one bread.
All Commentaries on 1 Corinthians 10:17 Go To 1 Corinthians 10
Ambrose of Milan
AD 397
Thus every soul which receives the bread which comes down from heaven is a house of bread, the bread of Christ, being nourished and having its heart strengthened by the support of the heavenly bread which dwells within it. Hence Paul says: “We are all one bread.” Every faithful soul is Bethlehem, just as that is called Jerusalem which has the peace and tranquility of the Jerusalem on high which is in heaven. That is the true bread which, after it was broken into bits, has fed all humanity.