Psalms 7:16

¹⁴ 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.

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

¹⁷ I will praise the LORD according to his righteousness: and will sing praise to the name of the LORD most high.

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

Compare

BSB: His trouble recoils on himself, and his violence falls on his own head.
KJV: His mischief shall return upon his own head, and his violent dealing shall come down upon his own pate.
WEB: The trouble he causes shall return to his own head. His violence shall come down on the crown of his own head.
ASV: His mischief shall return upon his own head, And his violence shall come down upon his own pate.
DARBY: His mischief shall return upon his own head, and his violence shall come down upon his own pate.
BLB: His trouble shall return upon his head, and on the top of his head, his violence shall come down.

ÅB: Den misgjerningen han planla, faller tilbake på hans eget hode,
og over hans egen isse kommer volden han hadde i sinne.
OTB: Hans skade vil vende tilbake på hans eget hode,
Og hans vold vil komme ned på hans egen krone.
B1930: Den ulykke han gikk og tenkte på, faller tilbake på hans hode, og over hans egen isse kommer den vold han hadde i sinne.

Esther 9:25
But when Esther came before the king, he commanded by letters that his wicked device, which he devised against the Jews, should return upon his own head, and that he and his sons should be hanged on the gallows.
Read in context
Psalms 37:12–13
The wicked plotteth against the just, and gnasheth upon him with his teeth.
Read in context
1 Kings 2:32
And the LORD shall return his blood upon his own head, who fell upon two men more righteous and better than he, and slew them with the sword, my father David not knowing thereof, to wit, Abner the son of Ner, captain of the host of Israel, and Amasa the son of Jether, captain of the host of Judah.
Read in context
1 Samuel 28:19
Moreover the LORD will also deliver Israel with thee into the hand of the Philistines: and to morrow shalt thou and thy sons be with me: the LORD also shall deliver the host of Israel into the hand of the Philistines.
Read in context
1 Samuel 24:12–13
The LORD judge between me and thee, and the LORD avenge me of thee: but mine hand shall not be upon thee.
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Psalms 36:12
There are the workers of iniquity fallen: they are cast down, and shall not be able to rise.
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1 Samuel 31:3–4
And the battle went sore against Saul, and the archers hit him; and he was sore wounded of the archers.
Read in context
1 Samuel 26:10
David said furthermore, As the LORD liveth, the LORD shall smite him; or his day shall come to die; or he shall descend into battle, and perish.
Read in context