Love God with all your heart, soul, mind, and strength; and love your neighbor as yourself.

"Jesus replied, “‘You must love the Lord your God with all your heart, all your soul, and all your mind.’ This is the first and greatest commandment. A second is equally important: ‘Love your neighbor as yourself.’ The entire law and all the demands of the prophets are based on these two commandments.”"
-Matthew 22:37-40 NLT