'Instance' in the Bible

If, for instance, a falsehood of mine has made God's truthfulness more conspicuous, redounding to His glory, why am I judged all the same as a sinner?

A wife, for instance, whose husband is living is bound to him by the Law; but if her husband dies the law that bound her to him has now no hold over her.

What follows? Is the Law itself a sinful thing? No, indeed; on the contrary, unless I had been taught by the Law, I should have known nothing of sin as sin. For instance, I should not have known what covetousness is, if the Law had not repeatedly said, "Thou shalt not covet."