Revelation 3:2 - Matthew Poole's English Annotations on the Holy Bible

Be watchful, against sin, and unto thy duty, to perform it in a better manner than formerly. And strengthen the things which remain, that are ready to die; improve those gifts and good habits which are left thee as yet, but are faint and ready to die, if thou dost not look after the improvement and strengthening of them. For I have not found thy works perfect before God; for I have not found thy works before God (whether thy works in thy ministry, or in thy conversation) such as they ought to be; thou mightest have done me more service, and thou mightest have done what thou hast done with more uprightness and sincerity.