1 John 3:4

Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.

Ver. 4. Sin is the transgression] As there is the same roundness in a little ball as in a bigger, so the same disobedience in a small sin as in a great. Papists tell us that concupiscence is not truly and properly a sin (Concil. Trident.); but St Paul saith otherwise, Romans 7:8. There are among us that say that original sin is not forbidden by the law; but sure we are it is cursed and condemned by the law, as that which hath in it a tacit consent to all sin. Peccatum est dictum, factum, concupitum contra aeternam legem, saith Austin (contra Faust. xxii. 27). Any lack of conformity to the eternal law is sin.