Behold, he travaileth with iniquity - The wicked man does. The allusion here is to the pains and throes of child-birth; and the idea is, that the wicked man labors or struggles, even with great pain, to accomplish his purposes of iniquity. All his efforts, purposes, plans, are for the promotion of evil.
And hath conceived mischief - That is, he hath formed a scheme of mischief. The allusion here is common when speaking of forming a plan of evil.
And brought forth falsehood - The birth is falsehood; that is, self-deception, or disappointment. It does not mean that falsehood was his aim or purpose, or that he had merely accomplished a lie; but the idea is, that after all his efforts and pains, after having formed his scheme, and labored hard (as if in the pangs of child-birth) to bring it forth, it was abortive. He would be disappointed, and would fail at last. This idea is expressed more distinctly in the following verse, and the design of the whole is to say that any plan or purpose of wickedness must be in the end a failure, since God is a righteous Judge, and will vindicate His own cause.