The heart of the righteous studieth to answer: but the mouth of the wicked poureth out evil things.
The heart of the righteous studieth to answer (speaketh nothing without due premeditation: doth not rashly 'pour out' whatever comes uppermost): but the mouth of the wicked poureth out evil things - in great copiousness, and without intermission. He "studieth" not beforehand what "to answer." Speaking so much, he cannot but speak "evil things" (Proverbs 10:19). Not his heart, as in the case of the righteous, but his "mouth" takes the lead.