There is no such thing in the Bible as being under the law without being under the curse for not obeying all its commands and the only way to be free from the curse which the Law brings is through death. 

The Son of God, Jesus Christ, was perfect and holy. The curse of the Law had no claim on Him. Yet, He willingly surrendered Himself for us all and was condemned and hanged on a tree which according to the Law was a curse. He did this for us when he offered himself to be the sacrifice for our sins.

He humbled Himself and died a humiliating death bearing the curse for our disobedience to set us free from the whole weight of the Law. This is Biblical doctrine and that is why Paul says the following in Romans 7:1-6

Know ye not, brethren, (for I speak to them that know the law,) how that the law hath dominion over a man as long as he liveth? For the woman which hath an husband is bound by the law to her husband so long as he liveth; but if the husband be dead, she is loosed from the law of her husband. So then if, while her husband liveth, she be married to another man, she shall be called an adulteress: but if her husband be dead, she is free from that law; so that she is no adulteress, though she be married to another man. 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. For when we were in the flesh, the motions of sins, which were by the law, did work in our members to bring forth fruit unto death. But now we are delivered from the law, that being dead wherein we were held; that we should serve in newness of spirit, and not in the oldness of the letter. ~ Romans 7:1-6

Here in Romans 7, Paul uses the law concerning marriage to illustrate how the Law of Moses was brought to an end. He uses a law within the Law to explain how we are free from the Law, and it is through the death of Christ that we have been made free from the law. Now that we are free from the Law, we are married or united to Jesus who has risen from the dead.

In Galatians 2, prior to telling us that Jesus was made to be a curse for us, Paul says, I through the law am dead to the law, that I might live unto God. I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me. ~ Galatians 2:19 – 20

When Paul says, I am crucified with Christ, the context is death to (or freedom from) the whole Law through faith in Christ who died for us.  The law was never given to make anyone righteous in God’s sight. The law was given because of transgressions, until Christ came. That is why the scripture says by the Law is the knowledge of sin (Romans 3:20).

In Romans 7, Paul says, I had not known sin, but by the law: for I had not known lust, except the law had said, Thou shalt not covet (v.7). Paul isn’t saying that the Law caused him to sin but rather, the Law amplified sin.

The Law of Moses was unable to save us because it could not subdue our sinful passions. It was weak through the flesh. So God did what the law could not do. He sent his own Son in a body like ours. And in that body God declared an end to sin’s control over us when he condemned sin in the flesh of Jesus. Jesus died in obedience to God’s will unlike Adam who died in disobedience.

For as by one man’s disobedience many were made sinners, so by the obedience of one shall many be made righteous. Moreover the law entered, that the offence might abound. But where sin abounded, grace did much more abound: That as sin hath reigned unto death, even so might grace reign through righteousness unto eternal life by Jesus Christ our Lord. ~ Romans 5:19-21

God Himself fulfilled the righteous requirements of the Law in the person of Jesus Christ  and set us free from sin’s power. Through faith in Jesus, we are not longer under the law, but now led by the power of the Spirit of God.

For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin (by a sacrifice for sin), condemned sin in the flesh: That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit. For they that are after the flesh do mind the things of the flesh; but they that are after the Spirit the things of the Spirit. ~ Romans 8:3-5