Berean Study Bible
If anyone thinks he is something when he is nothing, he deceives himself.

King James Bible
For if a man think himself to be something, when he is nothing, he deceiveth himself.

American Standard Version
For if a man thinketh himself to be something when he is nothing, he deceiveth himself.

Darby Bible Translation
For if any man reputes himself to be something, being nothing, he deceives himself;

Douay-Rheims Bible
For if any man think himself to be some thing, whereas he is nothing, he deceiveth himself.

English Revised Version
For if a man thinketh himself to be something, when he is nothing, he deceiveth himself.

Young's Literal Translation
for if any one doth think himself to be something -- being nothing -- himself he doth deceive;