Ezra 5:2

2. Then rose up It seems from Haggai 1:2, that the people had become discouraged at the opposition they met in rebuilding the temple, and after being hindered by royal authority, they concluded that the time for rebuilding the Lord’s house had not yet come. But when the Magian usurper was deposed, and Darius began to restore the Zoroastrian temples and worship, of which he speaks in his great Behistun inscription, the prophets discerned that things had changed, and the people should feel encouraged to resume their work again.

The prophets… helping them Urging and inspiring them to action by such exhortations and appeals as are found in the first chapter of Haggai.