James 1:25

23 For anyone who hears the word but does not carry it out is like a man who looks at his face in a mirror,

24 and after observing himself goes away and immediately forgets what he looks like.

But the one who looks intently into the perfect law of freedom, and continues to do so—not being a forgetful hearer, but an effective doer—he will be blessed in what he does.

26 If anyone considers himself religious and yet does not bridle his tongue, he deceives his heart and his religion is worthless.

27 Pure and undefiled religion before our God and Father is this: to care for orphans and widows in their distress, and to keep oneself from being polluted by the world.

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

Compare

BSB
But the one who looks intently into the perfect law of freedom, and continues to do so—not being a forgetful hearer, but an effective doer—he will be blessed in what he does.
KJV
But whoso looketh into the perfect law of liberty, and continueth therein, he being not a forgetful hearer, but a doer of the work, this man shall be blessed in his deed.
WEB
But he who looks into the perfect law of freedom and continues, not being a hearer who forgets but a doer of the work, this man will be blessed in what he does.
ASV
But he that looketh into the perfect law, the [law] of liberty, and [so] continueth, being not a hearer that forgetteth but a doer that worketh, this man shall be blessed in his doing.
DARBY
But *he* that fixes his view on [the] perfect law, that of liberty, and abides in [it], being not a forgetful hearer but a doer of [the] work, *he* shall be blessed in his doing.
BLB
But the one having looked intently into the perfect law, that of freedom, and having continued in [it], not having been a forgetful hearer but a doer of the work—this one will be blessed in his doing.
ÅB
Men den som skuer inn i frihetens fullkomne lov og holder ved med det, så han ikke blir en glemsom hører, men gjerningens gjører, han skal være salig i sin gjerning.
OTB
Men den som ser nøye inn i den fullkomne lov som gir frihet, og fortsetter i den—ikke glemmer hva de har hørt, men gjør det—vil finne velsignelse i sine handlinger.
B1930
Men den som skuer inn i frihetens fullkomne lov og holder ved med det, så han ikke blir en glemsom hører, men gjerningens gjører, han skal være salig i sin gjerning.

Study notes (Tyndale)

Original text and word study

Cross references