Is there a simple statement from the Bible that tells how a Christian should live their lives? Yes, absolutely! Matt 22:37-40: It starts out with a scribe trying to trick Jesus into a controversial question ask Jesus "Teacher, which is the great commandment in the law? “ But Jesus gets to the real problem of our walk with God. It is not obeying a law, but what you love. “37 Jesus said to him, "‘you shall love the Lord your God with all your heart, with all your soul, and with all your mind.' 38 This is the first and great commandment. 39 And the second is like it: 'You shall love your neighbor as yourself.' 40 On these two commandments hang all the Law and the Prophets."
To truly understand this passage we must understand the word “love”. It is the love that He loves us, a sacrificial love. It is the love used in John 3:16 “For God so loved the world that He gave His only begotten son, that whoever believes in Him should not perish but have everlasting life.” When he gave his son it was to be the perfect sacrifice for all man’s sin because in Romans 3:23 it says “For the wages of sin death,...” It is a love that gives its all to help others with no regard to one’s personal wants. This love is called in the Bible “agape.” Not “phileo” which is a brotherly love. It is a love that keeps on giving, not a love that is only good while I am getting something back from that person. It is a committed sacrificial love.
Now we can begin to understand verse 37, “Jesus said to him, ‘you shall love the Lord your God with all your heart, with all your soul, and with all your mind.’” It is not just obeying the commandments of God because we can’t in the power of our will or flesh. Remember when a person comes to Christ for salvation the Holy Spirit come to live in us to empower us to walk in obedience. Now from a heart of love knowing what God wants us to do then simply obeys. None of us can obey Him totally in our flesh, but in the power of His Spirit in us we can. If we do sin we experience immediate conviction for we have tarnished our love for Him. We will then quickly repent or turn away from that sin by asking forgiveness and are now cleansed and restored.
The above is how we walk before God and our relationship with Him. Verse 39 speaks how we walk before God in our relationships with others. It says, “And the second is like it: 'You shall love your neighbor as yourself.'” How we treat others reflects our love for God because we have the love of God in us. It is then God loving others through us. The apostle John tells us in 1 John 3:14 “We know that we have passed from death to life, because we love the brethren. He who does not love his brother abides in death.” Also John tells us quoting Jesus in his gospel story “John 13:34-35 A new commandment I give to you, that you love one another; as I have loved you, that you also love one another. By this all will know that you are My disciples, if you have love for one another."
Jesus finishes with a statement of how important all this is. In verse40 of Matthew 22 “On these two commandments hang all the Law and the Prophets." All of the teachings of the Old and New Testaments rest upon on these two commandments – Love God and Love others.