GOD'S WORD® Translation
If a person thinks that he is religious but can't control his tongue, he is fooling himself. That person's religion is worthless.

American Standard Version
If any man thinketh himself to be religious, while he bridleth not his tongue but deceiveth his heart, this man's religion is vain.

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

Douay-Rheims Bible
And if any man think himself to be religious, not bridling his tongue, but deceiving his own heart, this man's religion is vain.

English Revised Version
If any man thinketh himself to be religious, while he bridleth not his tongue but deceiveth his heart, this man's religion is vain.

King James Bible
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.

World English Bible
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.

Young's Literal Translation
If any one doth think to be religious among you, not bridling his tongue, but deceiving his heart, of this one vain is the religion;

James 1:26 Additional Translations ...