Jam_5:19-20. To the exhortation to mutual confession and intercession is annexed “the reference to an important matter—the reclaiming of an erring soul” (Wiesinger). Jam_5:19 forms the supposition; this is expressed in two co-ordinate sentences, of which the first is subordinate in thought to the second: “if any convert one who has erred from the truth.”
πλανηθῇ
] the passive aorist here, as frequently in the signification of the middle.
ἀπὸ
τῆς
ἀληθείας
] With this is meant not a single practical aberration, but an alienation from the Christian principle of life, an inward apostasy from the
λόγος
ἀληθείας
by which the Christian is begotten (Jam_1:18), disclosing itself in a sinful course of life (so also Wiesinger, Brückner, Lange[248]).
[248] Arbitrarily, Lange defines the aberration more precisely “as an aberration into Judaistic and chiliastic doings and fanatical and seditious lusts.”