After I had arrived in Jerusalem and had been there three days,
We are here told, I. Now Nehemiah was dismissed by the court he was sent from. The king appointed captains of the army and horsemen to go with him (Neh 2:9), both for his guard and to show that he was a man whom the king did delight to honour, that all the king's servants might respect him accordingly.
Commenting on Nehemiah 2:9-20
So I came to Jerusalem, and was there three days. Before he entered on any business, resting himself from the fatigue of the journey, and receiving the visits of his friends, as Ezra before him did, Ezr 8:32. . Nehemiah 2:12 neh 2:12 neh 2:12 neh 2:12And I arose in the might, I and some few men with me,....
So I came to Jerusalem, and was there three days--Deeply affected with the desolations of Jerusalem, and uncertain what course to follow, he remained three days before informing any one of the object of his mission [Neh 2:17-18]. At the end of the third day, accompanied with a few attendants, he made, under covert of night, a secret survey of the walls and gates [Neh 2:13-15].