Backsliding is Departing from the Simplicity of the Gospel
Source: TTT
2 Corinthians 11:3
I am afraid, however, that just as Eve was deceived by the serpent’s cunning, your minds may be led astray from your simple and pure devotion to Christ.
Galatians 3:1–3
O foolish Galatians! Who has bewitched you? Before your very eyes Jesus Christ was clearly portrayed as crucified. / I would like to learn just one thing from you: Did you receive the Spirit by works of the law, or by hearing with faith? / Are you so foolish? After starting in the Spirit, are you now finishing in the flesh?
Galatians 5:4, 7
You who are trying to be justified by the law have been severed from Christ; you have fallen away from grace. / You were running so well. Who has obstructed you from obeying the truth?