Theoretically, a night watchman’s job is to look out for possible threats to the field. Mostly, a night watchman just watches nothing, and waits until morning. The psalmist picks up on that reality to describe his hope for redemption. Out of the depths he cries for mercy from God, and waits in hope for God to act. It may be a long wait, but he has nothing else to do. Salvation is not coming from anywhere else.
LORD, we wait for you, and we trust in your forgiveness. Our hope is in your pleniful redemption.
Psalm 130