Yes, the elders of the church are called to be teachers, and to feed the flock, but they are not a Special class of people but brethren. You love toquote the passage in 1 John 2 about them being among us, well this follows that....
But ye have an unction from the Holy One, and ye know all things. (1 John 2:20)
But the anointing which ye have received of him abideth in you, and ye need not that any man teach you: but as the same anointing teacheth you of all things, and is truth, and is no lie, and even as it hath taught you, ye shall abide in him. (1 John 2:27)
From Thayer's Lexicon re: the word Unction and anointing in the above two verses:
STRONGS NT 5545: χρῖσμα
χρῖσμα (so R G L, small edition, WH) and χρῖσμα (Lachmann's major edition; T Tr; on the accent see Winers Grammar, § 6, 1e.; Lipsius, Grammat. Untersuch., p. 35; (Tdf. Proleg., p. 102)), χρίσματος, τό (χρίω, which see), anything smeared on, unguent, ointment, usually prepared by the Hebrews from oil and aromatic herbs. Anointing was the inaugural ceremony for priests (
Exodus 28:37;
Exodus 40:13 (15);
Leviticus 6:22;
Numbers 35:25), kings (
1 Samuel 9:16;
1 Samuel 10:1;
1 Samuel 15:1;
1 Samuel 16:3,
13), and sometimes also prophets (
1 Kings 19:16 cf.
Isaiah 61:1), and by it they were regarded as endued with the Holy Spirit and divine gifts (
1 Samuel 16:13;
Isaiah 61:1; Josephus, Antiquities 6, 8, 2 πρός τόν Δαυιδην — when anointed by Samuel — μεταβαινει τό θεῖον καταλιπον Σαουλον. καί ὁ μέν προφητεύειν ἤρξατο, τοῦ θείου πνεύματος εἰς αὐτόν μετοικισαμενου); (see BB. DD., see under the words, Ointment, Anointing). Hence, in
1 John 2:20 (where ἀπό τοῦ ἁγίου is so used as to imply that this χρῖσμα renders them ἁγίους (cf. Westcott at the passage)) and 27, τό χρῖσμα is used of the gift of the Holy Spirit, as the efficient aid in getting a knowledge of the truth; see χιω. (Xenophon, Theophrastus, Diodorus, Philo, others; for מִשְׁחָה,
Exodus 29:7;
Exodus 30:25;
Exodus 35:14;
Exodus 40:7 (9).)
I john is addressed to all Believers. Not just a priestly class. He speaks explicitly to children of the faith growing into young men and fathers/elders. We all are given the Holy Ghost and the anointing which teaches and sanctifies us in the Truth (See John 17:20-21 again.) To be taught by the Holy Ghost and to learn how to hear what the Spirit is saying to the church is the mark of an Elder in Christ Jesus, their anointing as priests.