Charles Ellicott Commentary Ezra 8:31

"Then we departed from the river Ahava on the twelfth [day] of the first month, to go unto Jerusalem: and the hand of our God was upon us, and he delivered us from the hand of the enemy and the lier-in-wait by the way." — Ezra 8:31 (ASV)

The hand of our God was upon us. —This sums up the history of the journey.