Romans 3:14

Whose mouth is full of cursing and bitterness:

The mouth full of cursing and bitterness belongs to God's portrayal of universal unrighteousness in which there is none righteous, none that understands or seeks God, and none that does good. That portrayal further marks this corruption by deceitful speech, bitter cursing from the mouth, feet swift to shed blood, destruction and misery in the ways, no knowledge of the way of peace, and no fear of God. This description is the present condition of the world and the church today as God sees it.

This terrible condition has been brought about by making void the law of God. Those entrusted with the oracles of God bring it about by breaking the law themselves and by teaching those who would obey the light to do the same. In this they deceive the people just as the leaders in Israel did in Christ's day.