Heres a few to compare, thought these showed the same sort of thing, just how they are worded
Prov 12:5 The thoughts of the righteous are right: but the counsels of the wicked are deceit.
Psalm 55:21 The words of his mouth were smoother than butter, but war was in his heart: his words were softer than oil, yet were they drawn swords.
Even as it shows this...
Prov 12:6 The words of the wicked are to lie in wait for blood: but the mouth of the upright shall deliver them.
He delivers from the mouth too
Ezek 34:10 ... For I will deliver my flock from their mouth, that they may not be meat for them.
Prov 12:7 The wicked are overthrown, and are not: but the house of the righteous shall stand.
Psalm 55:2 Cast thy burden upon the LORD, and he shall sustain thee: he shall never suffer the righteous to be moved.
Psalm 55:3 But thou, O God, shalt bring them down into the pit of destruction: bloody and deceitful men shall not live out half their days; but I will trust in thee.
Just as it shows bloody men (in the above) its shows its the words of the wicked (in the below) being that which lies in wait for blood
Prov 12:6 The words of the wicked are to lie in wait for blood: but the mouth of the upright shall deliver them.
Shown with deceit (pertaining to) the counsels of the wicked also
Prov 12:5 The thoughts of the righteous are right: but the counsels of the wicked are deceit.
So again bloody and deceitful (together)
Psalm 53:3... bloody and deceitful men shall not live out half their days; but I will trust in thee.
Compare these two...
Prov 12:6 The words of the wicked are to lie in wait for blood: but the mouth of the upright shall deliver them.
Psalm 72: 14 He shall redeem their soul from deceit and violence: and precious shall their blood be in his sight.
Then these two...
Jerm 9:8 Their tongue is as an arrow shot out; it speaketh deceit: one speaketh peaceably to his neighbour with his mouth, but in heart he layeth his wait.
To the same posted already..
Psalm 55:21 The words of his mouth were smoother than butter, but war was in his heart: his words were softer than oil, yet were they drawn swords.
Again...its with the mouth
Prov 12:6 The words of the wicked are to lie in wait for blood:
They did that with Jesus, and taking counsel in how they might
Mat 22:15 Then went the Pharisees, and took counsel how they might entangle him in his talk.
Luke 11:54 Laying wait for him, and seeking to catch something out of his mouth, that they might accuse him.
Jerm 5:26 For among my people are found wicked men: they lay wait, as he that setteth snares; they set a trap, they catch men.
Which is their devices, as the tongue is compared to a bow, a sword or an arrow
Psalm 37:14 The wicked have drawn out the sword, and have bent their bow, to cast down the poor and needy, and to slay such as be of upright conversation.
So they are left with trying to falsely accuse your conversation in their own feignedness. Pretending to be honest (even in their questions) as Jesus could perceive their hearts. These sometimes using flatteries, or words as smooth as butter but their intents in conversation are laden with deceitfulness having only a desire to entangle in talk and seek to accuse. I think we have all seen this on christian boards, Jesus encountered the same in religious spheres of influence. Even tells us to consider him who endured such contradiction of sinners against himself lest ye become weary and faint in your own minds. I sorta see this as applying to exactly this sort of thing too.