Q. 18. Wherein consists the sinfulness of that estate whereinto man fell?
A. The sinfulness of that estate whereinto man fell, consists in the guilt of Adam’s first sin, the want of original righteousness, and the corruption of his whole nature, which is commonly called original sin; together with all actual transgressions which proceed from it.
The catechism reminds us that our fundamental problem as human beings is not what we do (actual sins) but what we are (original sin). Our problem is that our nature is corrupt. And it is from this corruption of nature, a corruption which all human beings share, that our actual transgressions proceed.
And this, I believe, is one of the reasons that God has always dealt not just with believers but with their children - commanding our fathers to circumcise male infants and (I would argue as a good Presbyterian) commanding us to baptize our male and female infants. Even those precious, cuddly, warm and snuggly infants have a corrupt nature. Hence, apart from the grace of God, they too will perish in their sins. But thanks be to God! He shows mercy to our children and our children's children to a thousand generations.
This also reminds us why we are wholly dependent upon God for our salvation from first to last. Paul reminds us that "those who are in the flesh cannot please God." It is not simply that we "do not" please God but that we "cannot please God" - we lack the ability and the desire. Left to ourselves we will consistently choose to worship idols, to abandon the Living God, and to spurn His good law. So we depend on God to draw us to Himself (Jn 6:44), to enlighten our minds (Mt 11:25ff), and to free us from the shackles of our sin (Jn 8:34-36). When He does so, our only fitting response is one of praise and thanksgiving!
This week we study the Call of Abram - God in His grace and mercy reached out to Abram when he was in Ur of the Chaldees and called him to faith. This was wholly of grace - even as our call to faith is wholly of grace. So let us join our voices with Abram's in giving thanks to God.