Having pronounced His Church positively full of beauty, our Lord confirms His praise by a precious negative: "There is no spot in you!" As if the thought occurred to the bridegroom that the carping world would insinuate that He had only mentioned her lovely parts and had purposely omitted those features which were deformed or defiled, He sums up all by declaring her to be universally and entirely lovely, and utterly devoid of stain.
A spot is the very least thing that can disfigure beauty and may easily be removed but even from this little blemish, the believer is delivered in his Lord's sight. If He had said there is no hideous scar, no horrible deformity, no repulsive ulcer we might even then have marveled. But when He testifies that she is free from the slightest spot all these other forms of defilement are included, and the height of wonder is increased.
If He had but promised to remove all of her spots when in Heaven, we would have had eternal reason for joy. But when He speaks of it as already done, then who can restrain the most intense emotions of satisfaction and delight! O my soul, here is marrow and fatness for you; eat to your fill and be satisfied with royal dainties!
Christ Jesus has no quarrel with His spouse. She often wanders from Him and grieves Him, but He does not allow her faults to affect His love. He sometimes chides her, but it is always in the tenderest manner, with the kindest intentions, it is "My love" even then. There is no remembrance of our follies. His heart is free of bitterness toward us. He pardons and loves as well after the offence, as before it! Our precious Husband knows our silly hearts too well, to take any offence at our follies and faults!
[Charles H. Spurgeon]

Song of Solomon 4:7 ... Thou art all fair, my love; there is no spot in thee. ❤