Living without sin are words which shock many persons. It seems to them to be plucking the crown from the head of Christ, the only sinless man who ever walked the earth, and putting that crown upon the heads of men.
But let us see whether sin in the human soul really honors or dishonors Christ. What was the great errand of Jesus into the world? To save his people from their sins. So far, then, as he does not save from sin, his mission is a dishonorable failure. He came to create the believer anew, making him a new creature. So much of the old man of sin as appears to stain and corrupt this new creature reflects discredit upon "Him that beggeth." "Ye are his workmanship." The work testifies of the skill or of the incompetency of the artist. Will any one insist that sin is a beauty and not a blemish in the work of the Divine Sculptor? In his prayer, which has been appropriately styled his high-priestly address to his Father, Jesus says respecting his disciples, "I am glorified in them." Does Christ's glory consist in sin, reflected from his followers? St John said of the Logos, who became flesh and dwelt among us, that we beheld his glory — not a material resplendence, not worldly wealth, nor rank, nor fame, nor genius, but moral excellence, fullness of "grace and truth." These qualities in believing hearts glorify Christ. Sin is not only a shame to any people, but a shame to the God of any people. Jesus therefore, is not jealous of the believer who through the power of his grace, has complete victory over inward sin, and perfect cleansing from outward defilement, but he rejoices in the honor which his perfect work reflects upon his workmanship. He is not afraid that he who wears the robe of his righteousness will outshine himself, and appropriate his honors. Sin might do this, but holiness never.
— edited from Love Enthroned, Chapter 5.