Haggai
Haggai 2:4BSB·traditional attribution

But now be strong, O Zerubbabel, declares the LORD. Be strong, O Joshua son of Jehozadak, the high priest. And be strong, all you people of the land, declares the LORD. Work! For I am with you, declares the LORD of Hosts.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. The date of this message, Hag 2:1. It was sent on the twenty-first day of the seventh month, when the builders had been about a month at work (since the twenty-fourth day of the sixth month), and had got it in some forwardness.

Commenting on Haggai 2:1-9

John Gill Reformed Baptist @doctorgill

Yet now be strong, O Zerubbabel, saith the Lord,.... Take heart, be of good courage, do not be dismayed at these things; though, the building may be contemptible in the eyes of some, nevertheless go on with it manfully and vigorously; let, none despise the day of small things; for from these low beginnings great things will arise, and glorious things will follow, as hereafter...

Jamieson-Fausset-Brown Reformed @jfbcommentary

be strong . . . for I am with you--The greatest strength is to have Jehovah with us as our strength. Not in man's "might," but in that of God's Spirit (Zac 4:6).