I found the temptation to do this problematic, since I never could reconcile it with the last clause of 1 Cor 13:5.
Understandable.
And if that was your sense from The Lord, I’d have no argument.
However, I do not counsel women who’ve been beaten by their husbands . . . repeatedly . . . to ‘just work it out.’ Most such blokes never change. The woman needs totally free of that.
If God works a miracle, wonderful. Short of that . . .
To me, if keeping a journal helps a man take care of his kids in a Godly way, it’s a fitting Christian thing to do.
To me, I Cor 13:5 is about bitterness, pride, etc. storing up bitterness, resentments, and keeping a record of offenses in a bad faith kind of way for bad purposes.