…being confident of this very thing, that He who has begun a good work in you will complete it until the day of Jesus Christ… -Philippians 1:6

If I look into the chambers of my inner nature, I see all manner of deficiencies and deformities, and I may well be filled with dismay; but when I see Christ there, my heart is comforted, for He will both destroy the works of the devil, and perfect that which He has begun in me. I am a sinner, but my heart rests on its Savior; I am burdened with this body of sin and death but behold my Savior is formed in me the hope of glory. I am by nature an heir of wrath, even as others, but I am born into the second Adam’s household, and therefore I am beloved of the Most High, and a joint-heir with Christ. Is there Christ in thy heart beloved? Then everything that is there that would make thee sorrow may also suggest to thee a topic for joy. The saint is grieved to think that he has sin to confess, but he is glad to think that he is enabled to confess sin. The saint is vexed that he should have so much infirmity, yet he glories in infirmity because the power of Christ doth rest upon him. He is grieved day by day to observe his wanderings, but he is also rejoiced to see how the Good Shepherd follows him and restores his soul. So that all the evils and short comings in me which make me weep, also make me glad when Jesus is seen within. For all I see within myself lacking or sinful, I see a sufficient remedy in Christ who is all in all.

Christ is not only all by way of distinction, but He is all to God, all between us and our enemies, and all within ourselves. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1006.cfm