James 1:26

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

²⁵ 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.

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: If anyone considers himself religious and yet does not bridle his tongue, he deceives his heart and his religion is worthless.
KJV: If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man’s religion is vain.
WEB: If anyone among you thinks himself to be religious while he doesn’t bridle his tongue, but deceives his heart, this man’s religion is worthless.
ASV: If any man thinketh himself to be religious, while he bridleth not his tongue but deceiveth his heart, this man`s religion is vain.
DARBY: If any one think himself to be religious, not bridling his tongue, but deceiving his heart, this man's religion is vain.
BLB: If anyone thinks to be religious, not bridling his tongue, but deceiving his heart, the religion of this one [is] futile.

ÅB: Dersom en mener at han er en gudsdyrker, og ikke holder sin tunge i tømme, men dårer sitt eget hjerte, hans gudsdyrkelse er forgjeves.
OTB: De som anser seg selv som religiøse og likevel ikke holder et stramt grep om sin tunge, bedrar seg selv, og deres religion er uten verdi.
B1930: Dersom en mener at han er en gudsdyrker, og ikke holder sin tunge i tømme, men dårer sitt eget hjerte, hans gudsdyrkelse er forgjeves.

Study notes (Tyndale)

Original text and word study

Cross references

Psalms 141:3
Set a guard, O LORD, over my mouth; keep watch at the door of my lips.
Read in context
Ephesians 4:29
Let no unwholesome talk come out of your mouths, but only what is helpful for building up the one in need and bringing grace to those who listen.
Read in context
1 Peter 3:10
For, “Whoever would love life and see good days must keep his tongue from evil and his lips from deceitful speech.
Read in context
Ephesians 5:4
Nor should there be obscenity, foolish talk, or crude joking, which are out of character, but rather thanksgiving.
Read in context
Proverbs 19:1
Better a poor man who walks with integrity than a fool whose lips are perverse.
Read in context
Psalms 34:13
Keep your tongue from evil and your lips from deceitful speech.
Read in context
Proverbs 10:31
The mouth of the righteous brings forth wisdom, but a perverse tongue will be cut out.
Read in context
Proverbs 10:19
When words are many, sin is unavoidable, but he who restrains his lips is wise.
Read in context