If ye know that he is righteous, ye know that every one also that doeth righteousness is begotten of him.

If you have knowledge that he is upright, it is clear to you that everyone who does righteousness is his offspring.

Εαν εξευρητε οτι ειναι δικαιος, γνωριζετε οτι πας ο πραττων την δικαιοσυνην εξ αυτου εγεννηθη.

If ye know that he is righteous, ye know that every one that doeth righteousness is born of him.