Proverbs 30:15

¹³ There is a generation—how haughty are their eyes and pretentious are their glances—

¹⁴ there is a generation whose teeth are swords and whose jaws are knives, devouring the oppressed from the earth and the needy from among men.

The leech has two daughters: Give and Give. There are three things that are never satisfied, four that never say, ‘Enough!’:

¹⁶ Sheol, the barren womb, land never satisfied with water, and fire that never says, ‘Enough!’

¹⁷ As for the eye that mocks a father and scorns obedience to a mother, may the ravens of the valley pluck it out and young vultures devour it.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: The leech has two daughters: Give and Give. There are three things that are never satisfied, four that never say, ‘Enough!’:
KJV: The horseleach hath two daughters, crying, Give, give. There are three things that are never satisfied, yea, four things say not, It is enough:
WEB: “The leech has two daughters: ‘Give, give.’ “There are three things that are never satisfied; four that don’t say, ‘Enough!’:
ASV: The horseleach hath two daughters, [crying], Give, give. There are three things that are never satisfied, [Yea], four that say not, Enough:
DARBY: The leech hath two daughters: Give, give. There are three [things] never satisfied; four which say not, It is enough:
BLB: Unto the leech [are] two daughters—‘Give, [and] Give. Three [things] are never satisfied, four never say, ‘Enough!’:

ÅB: Blodiglen har to døtre: Gi hit! Gi hit! Der er tre som aldri blir mette, fire som aldri sier: Nok!
OTB: Iglen har to døtre, som roper: 'Gi! Gi!' Det er tre ting som aldri blir mette, fire som aldri sier: 'Nok!':
B1930: Blodiglen har to døtre: Gi hit! Gi hit! Der er tre som aldri blir mette, fire som aldri sier: Nok!

Proverbs 30:21
Under three things the earth trembles, under four it cannot bear up:
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Romans 16:18
For such people are not serving our Lord Christ, but their own appetites. By smooth talk and flattery they deceive the hearts of the naive.
Read in context
Proverbs 6:16
There are six things that the LORD hates, seven that are detestable to Him:
Read in context
Proverbs 30:29
There are three things that are stately in their stride, and four that are impressive in their walk:
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Jude 1:11–12
Woe to them! They have traveled the path of Cain; they have rushed headlong into the error of Balaam; they have perished in Korah’s rebellion.
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John 8:39
“Abraham is our father,” they replied. “If you were children of Abraham,” said Jesus, “you would do the works of Abraham.
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2 Peter 2:13–15
The harm they will suffer is the wages of their wickedness. They consider it a pleasure to carouse in broad daylight. They are blots and blemishes, reveling in their deception as they feast with you.
Read in context
Isaiah 56:11–12
Like ravenous dogs, they are never satisfied. They are shepherds with no discernment; they all turn to their own way, each one seeking his own gain:
Read in context