Do you mean 4:7, “Thou art all fair, O my love, and there is not a spot in thee”? Isn’t this about the Church, the bride, in relation to Christ, the bridegroom?
Romans 5:14 implies that some people didn’t sin.
Romans 5:14, “Yet death reigned from Adam to Moses, even over those whose sinning was not like the transgression of Adam, who was a type of the one who was to come.” This verse can’t be understood in isolation. It might “imply” that some people don’t sin, until we remember that earlier Paul told us that “
all have sinned and fall short of the glory of God, and are justified by his grace as a gift, through the redemption that is in Christ Jesus, whom God put forward as a propitiation by his blood, to be received by faith” (Romans 3:23-25). Anyone who lives long enough, barring total incapacitation from birth to death, will miss the mark and fall short of God’s glory.
And even in such a case as someone incapable of moral action, they still bear the affects of original sin. As Romans 5:14 explains, even though they did not sin as Adam did, because of Adam’s transgression all people are born spiritually dead–Romans 5: 12 “Therefore, just as sin came into the world through one man [Adam], and death through sin, and so death spread to all men because all sinned.”
