Zechariah 1:2 has a neat bit of text-painting. The verse uses the root “be angry” ( qatzaph ) twice. That of course gives the term emphasis. Yahweh is not merely angry; He’s ANGRY!
The verse is surrounded by the root qatzaph so that the verse reads: “Angry was Yahweh at your fathers – anger!” The fathers are surrounded by Yahweh’s anger. Or, perhaps better, Yahweh and the fathers encounter one another within the walls of Yahweh’s anger. Anger is the framework of their relationship.