New International Version
If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness.

American Standard Version
If we confess our sins, he is faithful and righteous to forgive us our sins, and to cleanse us from all unrighteousness.

Berean Study Bible
If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.

Douay-Rheims Bible
If we confess our sins, he is faithful and just, to forgive us our sins, and to cleanse us from all iniquity.

English Revised Version
If we confess our sins, he is faithful and righteous to forgive us our sins, and to cleanse us from all unrighteousness.

King James Bible
If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.

World English Bible
If we confess our sins, he is faithful and righteous to forgive us the sins, and to cleanse us from all unrighteousness.

Young's Literal Translation
if we may confess our sins, stedfast He is and righteous that He may forgive us the sins, and may cleanse us from every unrighteousness;

1 John 1:9 Additional Translations ...