When we submit ourselves to Christ, the heart is united with His heart, the will is merged in His will, the mind becomes one with His mind, the thoughts are brought into captivity to Him; we live His life. This is what it means to be clothed with the garment of His righteousness. Then as the Lord looks upon us He sees, not the fig-leaf garment, not the nakedness and deformity of sin, but His own robe of righteousness, which is perfect obedience to the law of Jehovah.
– Christ’s Object Lessons, pg. 311