Proverbs 20:11

⁹ Who can say, I have made my heart clean, I am pure from my sin?

¹⁰ Divers weights, and divers measures, both of them are alike abomination to the LORD.

Even a child is known by his doings, whether his work be pure, and whether it be right.

¹² The hearing ear, and the seeing eye, the LORD hath made even both of them.

¹³ Love not sleep, lest thou come to poverty; open thine eyes, and thou shalt be satisfied with bread.

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

Compare

BSB: Even a young man is known by his actions— whether his conduct is pure and upright.
KJV: Even a child is known by his doings, whether his work be pure, and whether it be right.
WEB: Even a child makes himself known by his doings, whether his work is pure, and whether it is right.
ASV: Even a child maketh himself known by his doings, Whether his work be pure, and whether it be right.
DARBY: Even a child is known by his doings, whether his work be pure, and whether it be right.
BLB: Even by his deeds a child is known, whether his action [is] pure and upright.

ÅB: Allerede den unge gutt viser ved sine gjerninger om hans ferd vil bli ren og rett.
OTB: Selv et barn er kjent ved sine handlinger, om deres oppførsel er ren og rett.
B1930: Allerede den unge gutt viser ved sine gjerninger om hans ferd vil bli ren og rett.

Matthew 7:16
Ye shall know them by their fruits. Do men gather grapes of thorns, or figs of thistles?
Read in context
Luke 6:43–44
For a good tree bringeth not forth corrupt fruit; neither doth a corrupt tree bring forth good fruit.
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Proverbs 21:8
The way of man is froward and strange: but as for the pure, his work is right.
Read in context
Luke 2:46–47
And it came to pass, that after three days they found him in the temple, sitting in the midst of the doctors, both hearing them, and asking them questions.
Read in context
Psalms 51:5
Behold, I was shapen in iniquity; and in sin did my mother conceive me.
Read in context
Psalms 58:3
The wicked are estranged from the womb: they go astray as soon as they be born, speaking lies.
Read in context
Luke 1:15
For he shall be great in the sight of the Lord, and shall drink neither wine nor strong drink; and he shall be filled with the Holy Ghost, even from his mother’s womb.
Read in context
Luke 1:66
And all they that heard them laid them up in their hearts, saying, What manner of child shall this be! And the hand of the Lord was with him.
Read in context