{Them that labour among you} (	ous kopi(936e)tas en humin).
Old word for toil even if weary. {And are over you in the Lord}
(kai proistamenous hum(936e) en Kuri(9369)). Same article with this
participle. Literally, those who stand in front of you, your
leaders in the Lord, the presbyters or bishops and deacons. Get
acquainted with them and follow them. {And admonish you} (kai
nouthetountas humas). Old verb from 
outhet(8873) and this from

ous (mind) and 	ith(886d)i, to put. Putting sense into the heads
of people. A thankless, but a necessary, task. The same article
connects all three participles, different functions of the same
leaders in the church.