Sanballat's actions in sending an unsealed letter to Nehemiah were a calculated attempt to intimidate and discredit him. In ancient times, letters were usually sealed to ensure privacy and authenticity. By sending an unsealed letter, Sanballat intended for its contents to be publicly known, potentially spreading rumors and sowing discord among the people. This tactic was meant to pressure Nehemiah into abandoning his work on rebuilding Jerusalem's walls.
Nehemiah's response to this challenge is a testament to his leadership and faith. Despite the external pressure and the potential for fear and doubt, Nehemiah remained focused on his mission. He did not allow the threats or the possibility of public scandal to deter him from the task God had set before him. This passage encourages believers to remain steadfast in their faith and purpose, trusting in God's protection and guidance even when facing opposition or attempts to undermine their integrity. It serves as a reminder that God's plans cannot be thwarted by human schemes, and that perseverance in faith will ultimately lead to success.