I understand. However, not one of these verses supersede the Beatitudes or Matthew 25, or the Sermon on the Plain or any of the other teachings of Christ which lay conditions upon salvation. If you go back and read these verses, in context, you may discover that they pertain more to the eternal promises of God to us, and they do not address, as does Jesus, Paul, Peter, John, James, et al, that we may fall away based upon our own actions.
I am Alpha and Omega, the beginning and the ending, saith the Lord, which is, and which was, and which is to come, the Almighty. - Revelation 1:8
Yes, we all believe that. But no Christian believes in frogmarching.
Conditions no human being is ever capable of meeting, thus disqualifying all human beings from attaining salvation through those works making them then completely dependent on God's grace and mercy.
The Law was put in charge to lead us to Christ.
Galatians 3:21-29 21Is the law then contrary to the promises of God? Certainly not! For if a law had been given that could give life, then righteousness would indeed be by the law. 22But the Scripture imprisoned everything under sin, so that the promise by faith in Jesus Christ might be given to those who believe.
23Now before faith came, we were held captive under the law, imprisoned until the coming faith would be revealed. 24So then, the law was our guardian until Christ came, in order that we might be justified by faith. 25But now that faith has come, we are no longer under a guardian, 26for in Christ Jesus you are all sons of God, through faith. 27For as many of you as were baptized into Christ have put on Christ. 28 There is neither Jew nor Greek, there is neither slave nor free, there is no male and female, for you are all one in Christ Jesus. 29And if you are Christ’s, then you are Abraham’s offspring, heirs according to promise.
There are other versions that translate it that the Law was put in charge to lead us to Christ.
This link takes you to parallel translations.
The Law was to show us what God's standards are so that we can see that we can't do it ourselves and we can see our need for HIS righteousness and that we can come to Him and ask for His mercy through faith.
NOBODY can live the Beatitudes. Even if you were perfect from here on in, it's already too late as one sin is all it takes to condemn you and make you guilty of the entire Law.
Good works cannot make up for all the sin we have committed. There is no forgiveness of sin without the shedding of blood, so we can't earn forgiveness by works, or penance, or paying it off in purgatory. Those will not get sin forgiven.
As for me, I simply love God, believe Him and trust Him.
Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.
This is the first and great commandment.
And the second [is] like unto it, Thou shalt love thy neighbour as thyself.
On these two commandments hang all the law and the prophets. – Matthew 22:35-40
God's Name is I AM.