The gospel proclaimed by the holy patriarchs Text: Genesis 22: 1-19 Readings: Revelation 5; Heidelberg Catechism Q/A 19This afternoon we consider the second way in which we come to know that our Mediator is truly God, truly human, and truly righteous. Heidelberg Catechism, Question & Answer 19, tells us that 'God himself ... later proclaimed it by the holy patriarchs'. Genesis 22 is full of types and images that Christ later fulfilled, so that is our text for this afternoon. Our theme is: in trusting obedience to the LORD's command, Abraham offered his only-begotten son in anticipation of Christ.