Jesus said unto him,
You shall love the Lord your God with all your heart, and with all your soul, and with all your mind.
All Commentaries on Matthew 22:37 Go To Matthew 22
Cyril of Alexandria
AD 444
Therefore the first commandment teaches every kind of godliness. For to love God with the whole heart is the cause of every good. The second commandment includes the righteous acts we do toward other people. The first commandment prepares the way for the second and in turn is established by the second. For the person who is grounded in the love of God clearly also loves his neighbor in all things himself. The kind of person who fulfills these two commandments experiences all the commandments.