The messages of hope in these chapters are about God blessing his people. That would happen after the time of judgement was over. Jacob’s family line would be brought back to their land. They would live faithful to God as his people. He would be the only God they worshipped and served. This would allow them to enjoy the covenant blessings.
God would give them peace, rest, safety and security. God would heal them and give them health and success. He would freely share with them his tender and faithful love. Their king would be the Branch from David’s family line. This king would do what was fair and right. The people would worship God in the ways that he had taught them. The priests and Levites would make sure of this.
God had described how his people’s sin was carved on the tablet of their hearts. He had said this in a judgement message recorded in Jeremiah 17:1. In these messages of hope he said something else would be written on their hearts. God promised to write his law on their hearts. This was how God would make a new covenant with his people. The law of the Mount Sinai covenant had been written on stone tablets.
Having God’s law written on their hearts was a way of describing something. It meant that God’s people would truly know who God is. Knowing God would make them able to understand clearly what sin and evil were. Then they would make the choice to say no to evil and yes to God. They would worship, serve and obey him. This is what God had always wanted for human beings.
Sin and evil would remain a problem for God’s people. But they would trust God to take care of this problem. God would take care of it by forgiving their sins and their evil ways. Unlike the judgement messages, these messages of hope were pleasant for Jeremiah. He bought a piece of land as a sign. It was a sign that God’s people would buy and sell land again in the future. It was a sign that God’s promises in the messages of hope would come true.
Jews recognised that some of the promises came true after the exile. They came to understand that some of the promises would come true in the future. That would happen when the messiah came. New Testament writers showed that Jesus put the new covenant into effect. Jesus made it possible for people to be freed from the power of sin and evil.