It's not like people in Jeremiah's day were asking God for a new covenant.
Living by the Word
“Mom! Jesus says that rich people don’t go to heaven!” “We are not rich. Go back to bed.”
The Roman custom of lifting a newborn infant probably underlies Jesus’s symbolic action in Mark 9.
If we are to get past our discomfort with the name-calling, we will have to look more closely and note what Jesus does with the word dog.
Proverbs 9 seems to suggest that someone might be tempted to bypass wisdom’s feast and try to survive on the thin gruel of folly, or information.