Job - 21:3 Meaning
“Suffer me that I may speak; and after that I have spoken, mock on.”
King James Version (KJV)
Matthew Henry's Concise Commentary
21:1-6 Job comes closer to the question in dispute. This was, Whether outward prosperity is a mark of the true church, and the true members of it, so that ruin of a man's prosperity proves him a hypocrite? This they asserted, but Job denied. If they looked upon him, they might see misery enough to demand compassion, and their bold interpretations of this mysterious providence should be turned into silent wonder.
“And it shall come to pass, if they will not believe also these two signs, neither hearken unto thy voice, that thou shalt take of the water of the river, and pour it upon the dry land: and the water which thou takest out of the river shall become blood upon the dry land.”