This is one of the most bastardized phrases used by churchians and one of the most egregiously stupid. Every time they use the phrase it’s not for its actual meaning it’s to pretend you must enable sin because people do it. To churchians false kindness and kumbayah singing is “love”, this modern insane definition is the equivalent of helping a junky OD and calling it “love”.
Love is not cruel or kind, love is doing what’s best for someone. If you love someone they might scorn you for it, but that’s the cost of it. Enabling the sinner is not love, it is sin.
Was using that example with someone this weekend. It's exactly their definition of love and it's wrong. I'm no bible scholar, but every bible story I recall of redemption came with regret or repentance or however you want to call it--essentially an actual desire to turn away from sin and try to do right.
I might guess they are bastardizing Romans 12:9 which says "Love must be sincere. Hate what is evil; cling to what is good." Maybe because it sounds close.