NET

12 So then, just as sin entered the world through one man and death through sin, and so death spread to all people because all sinned—

Darby

Two Men and Man's Personal Problem - Sin

12 For^D8031 this [cause], even as by one man sin entered into the world, and by sin death; and thus death passed upon all men, for that all have sinned:

Darby Bible Notes

For - Note: The epistle divides itself here, as to doctrine, into two distinct parts, which a new paragraph hardly shows. Up to ch. 5.11 'sins' had been treated of; from this point 'sin' is in view.

KJV

Two Men and Man's Personal Problem - Sin

12 Wherefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that^K6819all have sinned:

KJV Bible Notes

for that: Or, in whom.