What “enemy” menaced Ezra, and for what reason, is wholly uncertain . Perhaps robber-tribes, Arab or Syrian, were his opponents.

The journey through Ahava to Jerusalem.

For I was ashamed to require of the king's band of soldiers
and horsemen
Which he might have had, only as…

Ezra procured Levites to go with him; but what will that avail, unless he has God with him? Those who seek God are safe under the shadow of his win…