Haggai began with a command to build God’s house; here we see that in order to actually follow through in obedience to what we must do, God empowers us in our weakness.

Resources:

Haggai 1:12-15

The Minor Prophets: An Exegetical and Expository Commentary, Thomas McComiskey

Haggai, Malachi (New American Commentary), Richard Taylor

The Inspiration and Authority of the Bible, B.B. Warfield