Today in Common Prayer, the first scripture reading was Genesis 22:1-18, the story of the Binding of Isaac.
The last verses of that passage are always a reminder-
15 The LORD’s messenger called out to Abraham from heaven a second time 16 and said, “I give my word as the LORD that because you did this and didn’t hold back your son, your only son,17 I will bless you richly and I will give you countless descendants, as many as the stars in the sky and as the grains of sand on the seashore. They will conquer their enemies’ cities.18 All the nations of the earth will be blessed because of your descendants, because you obeyed me.” (CEB)
We are blessed because of the faithfulness of an ancestor, and we are blessed so that we might bless others.