To slip to fall away esp to abandon slowly the faith and training of a religion that's been professed
- fall to a lower degree, as in an individual's morals or standards
- To slide right back; to fall away; esp. to abandon slowly the trust and training of a religion that's been professed.
inside spiritual good sense, 1580s, from right back (adj.) + slide (v.). Relevant: Backslider; backsliding (1550s).
(v. i.) To slide straight back; to fall away; esp. to abandon gradually the belief and practice of a religion that is professed.
It is possible for every sinner to turn to God and escape punishment, and conversely for a righteous man to backslide and fall.