St. Faustina
“A disobedient soul will win no victory, even if the Lord Jesus Himself, in person, were to hear its confession. The most experienced confessor will be of no help whatsoever to such a soul. The disobedient soul exposes itself to great misfortunes; it will make no progress toward perfection, nor will it succeed in the spiritual life. God lavishes His graces Most generously upon the soul, but it must be an obedient soul.”
Source: St. Faustina, Diary: Divine Mercy in My Soul