Jesus said, "'Love the Lord your God with all your passion and prayer and intelligence.' This is the most important, the first on any list. But there is a second to set alongside it: 'Love others as well as you love yourself.'
Matthew 22:37
Jesus said, "The first in importance is, 'Listen, Israel: The Lord your God is one; so love the Lord God with all your passion and prayer and intelligence and energy.' And here is the second: 'Love others as well as you love yourself.' There is no other commandment that ranks with these."
Mark 12:29
He said, "That you love the Lord your God with all your passion and prayer and muscle and intelligence—and that you love your neighbor as well as you do yourself."
Luke 10:27