John Owen – How Sin is Conceived

THE third success of the deceit of sin in its progressive work is the
conception of actual sin. When it hath drawn the mind off from its duty, and entangled the affections, it proceeds to conceive sin in order to the bringing of it forth: “Then when lust hath conceived, it bringeth forth sin.”
Now, the conception of sin, in order unto its perpetration, can be nothing but the consent of the will; for as without the consent of the will sin cannot be committed, so where the will hath consented unto it, there is nothing in the soul to hinder its actual accomplishment.

When Sin is Conceived