If you study the way Grace is used in some verses you'll find out that Grace is also God empowerment to fulfill His requirements.. of the law..
Which verses?
Mat 13:52 Jesus clearly points out that we should refer to the law and so do the Apostles in acts..
Please provide the verse here and explain what you mean - I read it and am not clear about what you're trying to convey.
Also please show us in Acts where the Apostles conclude that believers are to live under the Law.
Note that all Scripture is valuable for teaching - that does not mean that everything in Scripture applies to the believer in Christ. A couple of easy things to discern would be that we aren't out there building arks in our backyards (well, except for
Ken Ham, but that's a whole 'nother ball of wax, ha) or offering sacrifices, etc. for example.
NT Grace is not a cover all so you can get in no matter what..
Actually, that's exactly what Grace is! No matter what you've done, Jesus paid the price. He qualifies you and gives you the gifts of His forgiveness, His righteousness, and His New Life - eternal life. That's not your life made longer, but His eternal life put within you as a gift. You enter in by Grace through Faith in Christ.
Otherwise we would need no scriptures that list things that disqualify.. Those epistles were written to believers not the UN..
Grace teaches us . . . but grace is never a means by which we are to keep the Old Covenant Law. Where grace lets us mess up and still live, Law condemns and is a ministry of death. Grace never disqualifies those who are in Christ and are qualified in Him, because in Christ, God is not holding our sins against us (see 2 Cor. 5:18-19), but the Law always disqualifies, because under the Law, God has to hold man's sins against them.
People who don't believe in Christ are condemned already because they do not believe in Christ. But it's not their sins that condemn them, but their unbelief.
And you're right - grace is not merely a 'cover-all' - grace was manifested in the Work of Christ to cleanse us from ALL unrighteousness for those who believe. The Law has nothing to do with it. Faith in Christ has everything to do with it!
Are there lots of behavior passages in the New Testament? You bet! But they are not a do/don't do or suffer eternal judgement system of Law, they are exhortations on how to live in this life. And you won't find feast or day keeping or dietary laws, animal sacrifices, stonings, or instuctions in purification rituals, which are all components of the Law.
And counterintuitively, Law actually stirs up sinning, it doesn't keep anyone from sinning - that's why Galatians says we who are led by the Spirit are not under the Law, and then goes on to list what the Fruit that the Spirit produces, and states that against those things there is no law.
We as believers need to be careful to not mix the Old and the New, which inevitably leads to confusion and doubts about the sufficiency of the Work of Christ and His ability to save us completely (see Heb. 7).
-JGIG