Romans 7:8

But sin, finding occasion, wrought in me through the commandment all manner of coveting: for apart from the law sin is dead.

This verse identifies sin in the human heart as the primary cause of violating God's law; but, in the sense of multiplying violations, the law itself is an ally of sin. Thus it is true that "through the commandment," as a secondary cause, all manner of violations are multiplied. Human nature being what it is, the very existence of law, given a rebellious heart in people, becomes the occasion of sin "abounding."