Once when a lawyer asked Him temptingly which is the great commandment in the law, Jesus answered unhesitatingly, "Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind. This is the first and great commandment. And the second is like unto it. Thou shalt love thy neighbour as thyself. On these two commandments hang all the law and the prophets." Divinely inspired, Jesus returned a very wise answer. The tempter was unable to catch Him. And now we all understand that answer is in very truth the sum of the law and the prophets. For if a man truly loves God, and also loves his neighbor as himself, there is no offense he will—or can—commit. All sin consists of evil done to oneself, or to one's neighbor, or to one's God. True love such as Jesus defined makes sin impossible.
The beatitudes.
At another time, when a great multitude followed Him from almost every part of the Holy Land, Jesus went up into a mountain and preached to the disciples that assembled near Him. It was at this time that He uttered the wonderful sayings commonly known as the Beatitudes. In these rich and beautiful sayings, Jesus describes the moral character that He requires in those who are to constitute His kingdom. In other words, everyone who would belong in full faith and fellowship to the kingdom of God must possess the qualities here named.
"Blessed are the poor in spirit: for theirs is the kingdom of heaven.
"Blessed are they that mourn: for they shall be comforted.
"Blessed are the meek: for they shall inherit the earth.
"Blessed are they which do hunger and thirst after righteousness: for they shall be filled.
"Blessed are the merciful: for they shall obtain mercy.
"Blessed are the pure in heart: for they shall see God.
"Blessed are the peacemakers: for they shall be called the children of God.