Isaiah 57:4 - Matthew Poole's English Annotations on the Holy Bible

Against whom do ye sport yourselves? consider whom it is that you mock and scoff when you deride God's prophets, as they did, Isaiah 28:14,22, and know that it is not so much men that you abuse as God, whose cause they plead, and in whose name they speak. Make a wide mouth, and draw out the tongue: these are the known and common gestures of mockers, of which see Job 16:10 Psalms 22:7, Psalms 35:21. Are ye not children of transgression, a seed of falsehood? either an adulterous brood, as was said before; or a generation of liars, whose practices grossly contradict your principles and professions, who deal deceitfully and perfidiously both with God and with men.