(2.) That which aggravates the sin on this false and lying generation is, [1.] That they are ingenious to sin: They have taught their tongue to speak lies, implying that through the reluctances of natural conscience they found it difficult to bring themselves to it. Their tongue would have spoken truth, but they taught it to speak lies, and by degrees have made themselves masters of the art of lying, and have got such a habit of it that use has made it a second nature to them. They learnt it when they were young (for the wicked are estranged from the womb, speaking lies, Ps. lviii. 3), and now they have grown dexterous at it. [2.] That they are industrious to sin: They weary themselves to commit iniquity; they put a force upon their consciences to bring themselves to it; they tire out their convictions by offering them continual violence, and they take a great deal of pains, till they have even spent themselves in bringing about their malicious designs. They are wearied with their sinful pursuits and yet not weary of them. The service of sin is a perfect drudgery; men run themselves out of breath in it, and put themselves to a great deal of toil to damn their own souls. [3.] That they grow worse and worse (v. 3): They proceed from evil to evil, from one sin to another, from one degree of sin to another. They began with less sins. Nemo repente fit turpissimus—No one reaches the height of vice at once. They began with equivocating and bantering, but at last came to downright lying. And they are now proceeding to greater sins yet, for they know not me, saith the Lord; and where men have no knowledge of God, or no consideration of what they have known of him, what good can be expected from them? Men's ignorance of God is the cause of all their ill conduct one towards another.