"I have been crucified with Christ. It is no longer I who live, but Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me... But now that faith has come, we are no longer under a guardian, for in Christ Jesus you are all sons of God, through faith..."
Christian life is not a matter of doing but of being. Of being in Christ. With him we die, crucified. With him, we rise. In him I gain his status, his future promised inheritance, his relationships within the Trinity. All by his giving of himself for me, for my sin, in love. Union with Christ is the Christian life. A life lived in step with the gospel, in step with the Spirit - growing to become who we already are rather than trying to earn our own way into access to God.
O Father, You have made man for the glory of yourself, and when not an instrument of that glory, he is a thing of nought; No sin is greater than the sin of unbelief, for if union with Christ is the greatest good, unbelief is the greatest sin, as being cross to thy command; I see that whatever my sin is, yet no sin is like disunion from Christ by unbelief.
...The more I love you with a truly gracious love the more I desire to love you, and the more miserable I am at my want of love; The more I hunger and thirst after thee, the more I faint and fail in finding thee, The more my heart is broken for sin, the more I pray it may be far more broken.
My great evil is that I do not remember the sins of my youth, nay, the sins of one day I forget the next. Keep me from all things that turn to unbelief or lack of felt union with Christ.