Nehemiah showed concern for his nation by reconstructing the walls of Jerusalem. When he heard that the walls were broken down and the gates were destroyed, he wept, mourned, fasted, and prayed to God. He then traveled to Jerusalem and began to organize the rebuilding of the walls with the help of the people. Despite opposition from neighboring enemies, the walls were completed in just 52 days. The reconstruction of the walls was important for the safety and security of Jerusalem, and Nehemiah's leadership in this endeavor showed his deep concern for his nation.