1:7-8 Again the Lord called the people to reflect thoughtfully on what they were doing (cf. v. 5). He urged them to go to the mountains where trees grew abundantly, to cut them down, and to continue rebuilding the temple (cf. Ezra 3:7). The completed temple would please and glorify Him.
1:9 The Israelites had looked for much blessing from the Lord, but they had found very little. When they brought their grain home, the Lord blew it away. Apparently their grain was so light and small that much of it blew away with the chaff when they threshed it. The reason was clear. They had neglected the temple and had given all their time and energy to providing for themselves by building their own houses.
1:10-11 The hot weather and poor harvests that the returned exiles were enduring were due to their selfish behavior (cf. Lev. 26:19-20; Deut. 28:22-24). Dew was the only form of moisture that plants enjoyed during the hot summer months, beside artificial irrigation, but even that was unavailable. The Lord had decreed drought that affected all their essential products and all aspects of their lives.
"Those who plan to give to God once they have enough for themselves' will never have enough for themselves!"17