The new covenant God made with the house of Israel and the house of Judah was written on
Answer Details
The new covenant that God made with the house of Israel and the house of Judah was written on their hearts. This is according to the book of Jeremiah in the Old Testament of the Bible. In Jeremiah 31:31-33, God promised to make a new covenant with Israel and Judah, one that would not be like the old covenant which they broke. The new covenant would be written on their hearts, meaning that God's laws and ways would be ingrained in their very being, and they would obey Him from the inside out, not just following external rules. This is a spiritual transformation that would be made possible through the sacrifice of Jesus Christ.