Like most of the old hymns, “Hark the Herald Angels Sing” tells us things about God, not about ourselves or our needs.
Angels are so powerful, it doesn't take many of them to get the job done. In human history, they have almost always appeared in ones and twos. But Christmas Eve was different.
We may have set a place for angels, as Abraham did. More likely and better still, we have shared our table with the sons and daughters of God