You do realize those works in those verses are talking about the works of the mosaic law right?
It also includes the moral law as found on the tablets of Moses. See Romans 7...
Romans 7:4 (KJV) Wherefore, my brethren, ye also are become dead to the law by the body of Christ; that ye should be married to another,
even to him who is raised from the dead, that we should bring forth fruit unto God.
as well as...
Romans 7:7 (KJV) What shall we say then?
Is the law sin? God forbid. Nay, I had not known sin, but by the law: for I had not known lust,
except the law had said, Thou shalt not covet.
Covetousness is discouraged in the New and forbidden in the Old...
Colossians 3:5 (KJV) Mortify therefore your members which are upon the earth; fornication, uncleanness, inordinate affection, evil concupiscence, and
covetousness, which is idolatry:
Exodus 20:17 (KJV) Thou shalt not covet thy neighbour's house, thou shalt not covet thy neighbour's wife, nor his manservant, nor his maidservant, nor his ox, nor his ass, nor any thing that
is thy neighbour's.
So yes, a verse like Rom 7:4 refers to ALL demands of God to obtain eternal life regardless of which Testament. Jesus fulfilled the demands of the law that were against us.
Colossians 2:13-15 (KJV) And you, being dead in your sins and the uncircumcision of your flesh, hath he quickened together with him, having forgiven you all trespasses; Blotting out the handwriting of ordinances that was against us, which was contrary to us, and took it out of the way, nailing it to his cross;
And having spoiled principalities and powers, he made a shew of them openly, triumphing over them in it.
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