Jesus summarized the commandments in two: 1) Love God with all your heart, soul, and mind and 2) Love your neighbor as yourself.
These commandments, if fulfilled through the Spirit, fulfill ALL of the law. Unfortunately, only Jesus could do this, since He is God. Therefore, we look to the Old Testament commandments for clarification. But, again, Jesus's two commandments, if understood and followed by the Spirit, will naturally cause us to fulfill the ten commandments in our lives. The ten commandments should only serve as a reminder. We must recognize the law as an unemployed tutor, since we now have a higher law: the law of Love and the law of liberty (James 2:8)