Proverbs 3:1 My son, do not forget my law, but let your heart keep my commands;
When Christ came to be with Israel He made sure that people, through the disciples and His teaching, knew that His commands were important.
Just as God had revealed to man that following Him through our hearts is important, so Christ taught us that loving others and Him were important.
The law is there to open our eyes and our hearts. We need to keep our eyes and hearts focused on Christ so the Holy Spirit can work through us!