Bible Verses About Repentance: Greater zeal in the path of duty

For beholde, this thing that ye haue bene godly sory, what great care it hath wrought in you: yea, what clearing of yourselues: yea, what indignation: yea, what feare: yea, howe great desire: yea, what a zeale: yea, what reuenge: in all things ye haue shewed your selues, that ye are pure in this matter.