(already quoted once)
Believer, abide in Christ as your righteousness. You bear about with you a nature altogether corrupt and vile, ever seeking to rise up and darken your sense of acceptance, and of access to unbroken fellowship with the Father. Nothing can enable you to dwell and walk in the light of God, without even the shadow of a cloud between, but the habitual abiding in Christ as your righteousness. To this you are called. Seek to walk worthy of that calling. Yield yourself to the Holy Spirit to reveal to you the wonderful grace that permits you to draw nigh to God, clothed in a divine righteousness.
Take time to realize that the King's own robe has indeed been put on, and that in it you need not fear entering His presence. It is the token that you are the man whom the King delights to honour. Take time to remember that as much as you need it in the palace, no less do you require it when He sends you forth into the world, where you are the King's messenger and representative.
Live your daily life in the full consciousness of being righteous in God's sight, an object of delight and pleasure in Christ. Connect every view you have of Christ in His other graces with this first one: "Of God He is made to you righteousness." This will keep you in perfect peace. Thus shall you enter into, and dwell in, the rest of God.
So shall your inmost being be transformed into being righteous and doing righteousness. In your heart and life it will become manifest where you dwell; abiding in Jesus Christ, the Righteous One, you will share His position, His character, and His blessedness: "Thou lovest righteousness, and hatest iniquity: therefore God, thy God, hath anointed thee with oil of gladness above they fellows." Joy and gladness above measure will be your portion.
Andrew Murray really has a way with words. A much better way with words than me, therefore I share his words with you, in the hopes that you will gain something from his wisdom. If not, maybe you will at least be impressed with my reading of old books and quoting them. (I do get some "smart points" to rank higher on the "smart list" when I quote smart, eloquent people right?)