Psalms 12: 3, 4 (KJ21)
The LORD shall cut off all flattering lips, and the tongue that speaketh proud things, who have said, "With our tongue, we will prevail; our lips are our own; who is lord over us?"

Psalms 12: 3, 4 (NAS)
May the LORD cut off all flattering lips, The tongue that speaks great things; Who have said, "With our tongue we will prevail; Our lips are our own; who is lord over us?"

Psalms 12: 3, 4 (NIVUS)
May the LORD cut off all flattering lips and every boastful tongue that says, "We will triumph with our tongues; we own our lips—who is our master?"

Psalms 12: 3, 4 (NLT)
May the LORD bring their flattery to an end and silence their proud tongues. They say, "We will lie to our hearts’ content. Our lips are our own—who can stop us?"

If you have been on a slippery surface, such as an icy sidewalk, you know how treacherous walking can be. If you begin to slip, you can do very little to prevent yourself from falling. There is also a good possibility that you could hurt yourself from such a fall. Some people's words are similar to that icy sidewalk. Even though they sound smooth and flattering, they will only lead you to a slippery place, where you could be separated from your inheritance and portion. They want to take away what you have been promised or have already received.

These evil speakers are insolent and proud. They see themselves as great and noble men: they are "high and mighty". These boast exceedingly about themselves, but use their tongues to accuse and slander you. Everything that comes out of their mouths is just twisted babble. They want to accumulate and increase in power and things, but they desire your ruin and destruction. With their flaming words, they think that they will prevail. They trust in their own strength and power; they will not submit to another's rule or control. No one, except themselves, is their lord and master, for they believe they are sovereign.

Adonai, the true sovereign Lord, has heard their vain boastings. The Lord Jehovah will cut these proud ones down to size. The ones, who seek to ruin and destroy you, will be chewed up and consumed. Their words will fail and they will perish. You, however, will increase more and more, for Jehovah will prosper you and the words of your mouth.