Matthew Poole and continuators on Job 20:2

2. Therefore do my thoughts cause me to answer , and for this I make hast .

For this thy severe sentence and denunciation of God's judgments against ut, Chap. 19. 29. which much more justly belongs to thy self and is actually executed upon thee; and because of thy reproaches, as it followeth, v. 3.

I thought to have troubled my self and thee with no further discourses, considering how exceptious and incorrigible thou art, but my thoughts or consideration of thy reproachful words force me to break silence and to answer thee as the matter requires.

I speak sooner than I intended, because I am not able to contain my self longer, and fear lest I should forget what is in my mind. Possibly he interrupted Iob, when he was proceeding further in his discourse. Or, he prevented some of his brethren who made an offer to speak.