Romans 13:5

Whereofore ye must needs be in subjection, not merely because of the wrath, but also for conscience' sake.

There are twin reasons for the Christian's observance of society's laws: first, as a matter of conscience, it is a sin for him to break the law; and second, in order that he might not incur the legal penalty of lawbreaking. The preeminent consideration is that of pleasing God, as Peter expressed it, "Obey every ordinance of man, for the Lord's sake" (1 Peter 2:13).