What a treat today! Deuteronomy 29 offers two things in particular I find of interest. Hebrews warns us against allowing a root of bitterness to spring up. Deuteronomy 29:18, 19 identify this bitter root with secret idolatry of the heart - a root that bears poisonous and bitter fruit. And the glory of verse 29! Easy to remember (29:29): "The secret things belong to the Lord our God, but the things that are revealed belong to us and to our children forever, that we may do all the words of this law." There are things that are none of our business - questions we have no business answering, areas we have no business prying into. But when the Lord reveals something to us, that is our heritage, and a heritage to pass along to our children, so that we may live in obedience to the Revealer.
In the NT reading, impossible to avoid the fact that as forgiveness delights the heart of God, there is nothing that so angers Him as our refusal to forgive - we who have been so richly forgiven. Grudge bearing holds in contempt the unspeakable mercy we have received.
Great writing from Dr. Luther today too!