Psalms 7:14

¹² If he turn not, he will whet his sword; he hath bent his bow, and made it ready.

¹³ He hath also prepared for him the instruments of death; he ordaineth his arrows against the persecutors.

Behold, he travaileth with iniquity, and hath conceived mischief, and brought forth falsehood.

¹⁵ He made a pit, and digged it, and is fallen into the ditch which he made.

¹⁶ His mischief shall return upon his own head, and his violent dealing shall come down upon his own pate.

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

Compare

BSB: Behold, the wicked man travails with evil; he conceives trouble and births falsehood.
KJV: Behold, he travaileth with iniquity, and hath conceived mischief, and brought forth falsehood.
WEB: Behold, he travails with iniquity. Yes, he has conceived mischief, and brought out falsehood.
ASV: Behold, he travaileth with iniquity; Yea, he hath conceived mischief, and brought forth falsehood.
DARBY: Behold, he travaileth with iniquity, yea, he hath conceived mischief, and brought forth falsehood:
BLB: Behold, he travails [with] evil, and he conceives trouble, and brings forth falsehood.

ÅB: Overtrederen er i ferd med å føde misgjerning;
han er gravid med ulykke
og føder løgn.
OTB: Se, en ond person er fylt med urettferdighet,
Og han unnfanger skade og føder løgn.
B1930: Se, han er i ferd med å føde misgjerning; han er fruktsommelig med ulykke og føder løgn. / < den ugudelige.>

Job 15:35
They conceive mischief, and bring forth vanity, and their belly prepareth deceit.
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James 1:15
Then when lust hath conceived, it bringeth forth sin: and sin, when it is finished, bringeth forth death.
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Isaiah 33:11
Ye shall conceive chaff, ye shall bring forth stubble: your breath, as fire, shall devour you.
Read in context
Job 15:20
The wicked man travaileth with pain all his days, and the number of years is hidden to the oppressor.
Read in context
Isaiah 59:4–5
None calleth for justice, nor any pleadeth for truth: they trust in vanity, and speak lies; they conceive mischief, and bring forth iniquity.
Read in context