'My sin is ever before me' [Psalm 51.3]. A humble soul sees that he can stay no more from sin, than the heart can from panting, and the pulse from beating. He sees his heart and life to be fuller of sin, than the firmament is of stars; and this keeps him low. He sees that sin is so bred in the bone, that till his bones, as Joseph's, be carried out of the Egypt of this world, it will not out. Though sin and grace were never born together, and though they shall not die together, yet while the believer lives, these two must live together; and this keeps him humble.
For years, maybe, you have tried fruitlessly to exercise control over yourself, and perhaps this is still your experience; but when once you see the truth you will recognize that you are indeed powerless to do anything, but that in setting you aside altogether God has done it all. Such discovery brings human striving and self-effort to an end.
Without this heart attitude it is exceedingly difficult for us to accept the circumcision of the flesh. Every affection, desire, thought, knowledge, intent, worship, and work of the flesh must go to the cross.