'Law' in the Bible

He has qualified us [making us sufficient] as ministers of a new covenant [of salvation through Christ], not of the letter [of a written code] but of the Spirit; for the letter [of the Law] kills [by revealing sin and demanding obedience], but the Spirit gives life.

Now if the ministry of death, engraved in letters on stones [the covenant of the Law which led to death because of sin], came with such glory and splendor that the Israelites were not able to look steadily at the face of Moses because of its glory, [a brilliance] that was fading,

For if the operation of the law, producing punishment, had its glory, how much greater will be the operation of the Spirit causing righteousness?

Indeed, what had glory [the Law], in this case no longer has glory because of the glory that surpasses it [the gospel].

But to this day, at the reading of the law of Moses, a veil is over their heart.