Randy McCarthy spoke about The Cup of Blessing.
1Corinthians 10:16-17 The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ? For we being many are one bread, and one body: for we are all partakers of that one bread.
Referenced Scriptures: [1Corinthians 10:14-21, Exodus 6:1-8, Psalm 75:8]