Jamieson, Fausset and Brown on Zechariah 1:16

16. I am returned--whereas in anger I had before withdrawn from her (Ho 5:15).

with mercies--not merely of one kind, nor once only, but repeated mercies.

my house shall be built--which at this time (the second year of Darius, Zec 1:1) had only its foundations laid (Hag 2:18). It was not completed till the sixth year of Darius (Ezr 6:15).

line--(Job 38:5). The measuring-line for building, not hastily, but with measured regularity. Not only the temple, but Jerusalem also was to be rebuilt (Ne 2:3, &c.; compare Zec 2:1, 2). Also, as to the future temple and city, Eze 41:3; 42:1-44:31; 45:6.