Matthew 22:36-40

36 “Teacher, which is the greatest commandment in the Law?”

37 Jesus replied: “‘Love the Lord your God with all your heart and with all your soul and with all your mind.’[a] 38 This is the first and greatest commandment. 39 And the second is like it: ‘Love your neighbor as yourself.’[b] 40 All the Law and the Prophets hang on these two commandments.”

Colossians 3:15

Let the peace of Christ rule in your hearts, since as members of one body you were called to peace. And be thankful.

Colossians 4:2

Devote yourselves to prayer, being watchful and thankful.