NET
28 We proclaim him by instructing and teaching all people with all wisdom so that we may present every person mature in Christ.
Darby
28 whom *we* announce, admonishing every man, and teaching every man, in all wisdom, to the end that we may present every man perfect in Christ.
KJV
28 Whom we preach, warning every man, and teaching every man in all wisdom; that we may present every man perfect in Christ Jesus: