Haggai 1:8

Go up to the mountain] They were to act at once. The prophet was in earnest. The mountain would be 'the hill-country of Judah,' the mountainous neighbourhood. Compare Nehemiah 2:8 and Nehemiah 8:15. Bring wood] i.e. timber suitable for building. The house] the Temple of Jehovah, which had been lying in ruins since being destroyed at the command of Nebuchadrezzar (2 Kings 25:9). And I will be glorified] better, 'and that I may display my glory.' Here the prophet first interprets these calamities as being due to God's anger at their selfishness. The two following vv. emphasise this explanation. The people were zealous enough over their own affairs, but wholly neglectful of their obligations to God.

12-15. The leaders and people, their consciences awakened, encouraged by Haggai, begin work upon the Temple (September, 520 b.c.).