Greek Text:
13 Κακοπαθεῖ τις ἐν ὑμῖν, προσευχέσθω· εὐθυμεῖ τις, ψαλλέτω·14 ἀσθενεῖ τις ἐν ὑμῖν, προσκαλεσάσθω τοὺς πρεσβυτέρους τῆς ἐκκλησίας καὶ προσευξάσθωσαν ἐπ᾽ αὐτὸν ἀλείψαντες [αὐτὸν] ἐλαίῳ ἐν τῷ ὀνόματι τοῦ κυρίου. 15 καὶ ἡ εὐχὴ τῆς πίστεως σώσει τὸν κάμνοντα καὶ ἐγερεῖ αὐτὸν ὁ κύριος· κἂν ἁμαρτίας ᾖ πεποιηκώς, ἀφεθήσεται αὐτῷ.16 ἐξομολογεῖσθε οὖν ἀλλήλοις τὰς ἁμαρτίας καὶ εὔχεσθε ὑπὲρ ἀλλήλων ὅπως ἰαθῆτε. πολὺ ἰσχύει δέησις δικαίου ἐνεργουμένη.
17 Ἠλίας ἄνθρωπος ἦν ὁμοιοπαθὴς ἡμῖν, καὶ προσευχῇ προσηύξατο τοῦ μὴ βρέξαι, καὶ οὐκ ἔβρεξεν ἐπὶ τῆς γῆς ἐνιαυτοὺς τρεῖς καὶ μῆνας ἕξ·18 καὶ πάλιν προσηύξατο, καὶ ὁ οὐρανὸς ὑετὸν ἔδωκεν καὶ ἡ γῆ ἐβλάστησεν τὸν καρπὸν αὐτῆς.
Holman Christian Standard Bible:
13 Is anyone among you suffering? He should pray. Is anyone cheerful? He should sing praises. 14 Is anyone among you sick? He should call for the elders of the church, and they should pray over him after anointing him with olive oil in the name of the Lord. 15 The prayer of faith will save the sick person, and the Lord will restore him to health; if he has committed sins, he will be forgiven. 16 Therefore, confess your sins to one another and pray for one another, so that you may be healed. The urgent request of a righteous person is very powerful in its effect.
17 Elijah was a man with a nature like ours; yet he prayed earnestly that it would not rain, and for three years and six months it did not rain on the land. 18 Then he prayed again, and the sky gave rain and the land produced its fruit.
The above passage is what my research project for college. It has a whole heap of exegetical issues, and I think pastoral issues. I'm currently in the process of writing an exegetical paper on the passage to begin my thinking . God willing I can come up with some helpful solutions