Othello, Iago, and a gentleman walk together. Othello gives Iago some letters to send to the Venetian senate, and tells him to meet him on the fortifications. Iago exits. Othello goes to tour the fortifications.
Othello yet again exhibits his trust in Iago. Such trust shows Othello's honor, yet also highlights how this good trait makes him vulnerable he is to Iago's machinations.