עזרא, פרק ח׳, פסוק ל״א

The journey back to Jerusalem begins under the watchful care of God, who closely protects the returning travelers from harm. They set out on the twelfth day of the first month, which is the month of Nisan [רש״י, ביאור שטיינזלץ]. Their departure takes place from a river that naturally flows toward a location known as Ahava [מצודת דוד].

As they travel, God's active involvement remains clearly evident. His assistance is specifically directed toward granting them success and safe passage along their chosen route [רש״י]. Because of His continuous oversight, the travelers are completely shielded from both visible and hidden dangers. This divine protection specifically saves them from any hostile enemy waiting in ambush, ready to suddenly attack them as they make their way down the road [מצודת ציון, ביאור שטיינזלץ].