The Bible says we are God’s creation, and we must look to our Creator for salvation. It teaches that men and women are sinful and require Salvation. If any person’s sins are not forgiven in this life, he or she will pay the penalty, after death, of eternal separation from God. It's a big issue but work salvation is not going to save you.
We can do a truckload of “good works”, and we still can never measure up. Believe in God is what gets us there.
So what is it that Abraham did when righteousness was credited to him in Genesis 15? He believed God. What what was is it that did Jesus say Abraham had done that the Jews had not done? He believed God.
The gospel tells us to believe John 3:16.
God's law was never given as instructions for how to be good enough to measure up. Even if someone managed to live in perfect obedience to God's law, then they would not have done a good enough job to earn their salvation because God's law was never give as a way of earn our salvation. In Matthew 11:28-30 and Jeremiah 6:16-19, God's law is described as the good way where we will find rest for our souls, but thinking that obedience to it is about trying to be good enough robs our souls of the rest that it was intended to give us because we will never know whether we had done enough.
It is contradictory for someone to think that we should look to God for salvation, but that we should not look to God instructions for salvation. God is trustworthy, therefore His instructions are also trustworthy (Psalms 19:7), so the way to trust God is by obediently trusting in His instructions, so believing in God is not an alternative to obeying His instructions, but rather obeying His instructions is the way to believe in Him. When we do good works in obedience to God's instructions we are testifying about His goodness, which is why our good works bring glory to Him (Matthew 5:16), and by testifying about God's goodness, we are also expressing the belief that God is good, or in other words, we are believing in Him.
While it is true that Abraham believed God, so he was justified (Genesis 15:6), it is also true that he believed God, so he obeyed God's command to offer Isaac (Hebrews 11:17), so the same faith by which he was justified was also expressed as obedience to God, but he did not earn his justification as the result of his obedience (Romans 4:1-5). In James 2:21-24, it quotes Genesis 15:6 to support saying that Abraham was justified by his works when he offered Isaac, that his faith was active along with his works, and that his faith completed his works, so he was justified by his works insofar as they were an expression of his faith, but not insofar as they were earning a wage.
O'my I've heard that people that uphold works salvation were like judaizers wanting to put people back under the law.
In Matthew 4:15-23, Jesus began his ministry with the Gospel message to repent for the Kingdom of God is at hand, and God's law was how his audience knew what sin is (Romans 3:20), so repenting from our disobedience to it is a central part of the Gospel message. Furthermore, Jesus set a prefect example of how to practice Judaism by living in sinless obedience to God's law, and we are told to follow his example (1 Peter 2:21-22), that those who are in Christ are obligated to walk in the same way he walked (1 John 2:6), and to be imitators of Paul as he was an imitator of Christ. So Christ spent his ministry teaching his follower to practice Judaism by word and by example and the problem that Paul had with the Judaizers was not that they thought that Gentiles should follow Christ, but that they were warning to require Gentiles to have first obey works of the law and become circumcised in order to become justified as the result.
In Romana 6:14, Paul described the law that we are not under as being a law where sin had dominion over, which does not describe the Law of God, which is a law that leads us to do what is holy, righteous, and good (Romans 7:12), but rather it is the law of sin where sin had dominion over us. In Romans 6:15, being under grace does not mean that we are permitted to sin, and sin is the transgression of the Law of God (1 John 3:4), so we are still under the Law of God, but are not under the law of sin.