εγγισατε τω θεω και εγγιει υμιν καθαρισατε χειρας αμαρτωλοι και αγνισατε καρδιας διψυχοιJames 4:8 Textus Receptus with various translations
The King James Version translates the last word, διψυχοι, as “double minded” which suggests to me a feel-good spirituality without repentance. Avoiding repentance is a sign that one hasn’t experienced the joy that such change provides when grounded on forgiveness. No amount of substitute sentiment can compare with that.
I suspect the devil needs only half a heart to drag us all the way down. King David wanted nothing less than a newly created, clean heart when he almost lost it all with Bathsheba.
לב טהור ברא לי אלהים ורוח נכון חדשׁ בקרביPsalm 51:10 Masoretic Text with various translation
Being double minded is also like lighting a candle and putting it under a basket. Oneta Hayes tells us what will happen if we do that: the fire goes out.