'Warn' in the Bible

Now we ask you, brothers and sisters, to appreciate those who diligently work among you [recognize, acknowledge, and respect your leaders], who are in charge over you in the Lord and who give you instruction,

We [earnestly] urge you, believers, admonish those who are out of line [the undisciplined, the unruly, the disorderly], encourage the timid [who lack spiritual courage], help the [spiritually] weak, be very patient with everyone [always controlling your temper].