There are 613 Mosaic Laws
Which are condensed to 11 Laws in Psalm 115
Which are condensed to 3 Laws in Micah 6:8
Which are condensed to 2 Laws in Matthew 22:37-39
He could have narrowed it down to one Law, but that one Law is inextricably linked to the other.
Jesus replied: “‘Love the Lord your God with all your heart and with all your soul and with all your mind.’ This is the first and greatest commandment. And the second is like it: ‘Love your neighbor as yourself.’
Once you want God’s definition of how to love your neighbor as yourself, then it’s time to look at those other Laws (Romans 13:8-9).
Related Article: A Jewish Look at Bible Laws.