Meaning
akin to planao (see ERR, No. 1), "a wandering, a forsaking of the right path, see Jam 5:20, whether in doctrine, 2Pe 3:17, 1Jo 4:6, or in morals, Rom 1:27, 2Pe 2:18, Jud 1:11, though, in Scripture, doctrine and morals are never divided by any sharp line. See also Mat 27:64, where it is equivalent to 'fraud.'" * [* From Notes on Thessalonians by Hogg and Vine, p. 53.]
"Errors" in doctrine are not infrequently the effect of relaxed morality, and vice versa.
In Eph 4:14 the RV has "wiles of error," for AV, "they lie in wait to decive;" in 1Th 2:3, RV, "Error," for AV, "deceit;" in 2Th 2:11, RV, "a working of error," for AV, "strong delusion." See DECEIT. Cp. planetes, "a wandering," Jud 1:13, and the adjective planos, "leading astray, deceiving, a deceiver."
<2,,51, agnoema>
"a sin of ignorance" (cp. agnoia, "ignorance," and agnoeo, "to be ignorant"), is used in the plural in Heb 9:7.