“You shall not commit adultery, You shall not kill, You shall not steal, You shall not covet,” and every other commandment are all summed up in this: “You shall love your neighbor as yourself.”
Take heed to follow the commandments and the laws that Moses, the servant of the Lord, gave you: to love the Lord, your God, and to walk in his ways and to observe his commandments, holding fast to him and serving him with all your heart and all your soul.
The Lord said to Moses, “Climb up to me on the mountain and remain there. I will give you stone tablets with the laws and commandments that I have written for their instruction.”
Therefore, whoever breaks even one of the least of these commandments and teaches others to do the same will be considered least in the kingdom of heaven. But whoever observes these commandments and teaches them will be called great in the kingdom of heaven.
You have heard that it was said of old: ‘You shall not commit adultery.’ But I say to you that anyone who looks with lust at a woman has already committed adultery with her in his heart.