40 On these two commandments hang all the law and the prophets.
Notice verse 40? On these two laws, are the entire Old Covenant based....That means that if you live by these two laws you fulfill the OC law. And it also frees you to give a tithe of anything you want to...The Jews lived in a mainly agrarian society. They took their increase from the land. Today we live in a much more diverse society, from farming, fishing to politics and manufacturing and so on....Therefore our produce is infinitely variable.
Paul says if we aren't cheating with their wife, murdering them, stealing from them, etc.. basically we are loving them.
Rom 13:8; Owe nothing to anyone except to love one another; for he who loves his neighbor has fulfilled the law.
Rom 13:9; For this, "YOU SHALL NOT COMMIT ADULTERY, YOU SHALL NOT MURDER, YOU SHALL NOT STEAL, YOU SHALL NOT COVET," and if there is any other commandment, it is summed up in this saying, "YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF."
Rom 13:10; Love does no wrong to a neighbor; therefore love is the fulfillment of the law.
Matt 19:16; And someone came to Him and said, "Teacher, what good thing shall I do that I may obtain eternal life?"
Matt 19:17; And He said to him, "Why are you asking Me about what is good? There is only One who is good; but if you wish to enter into life, keep the commandments."
Matt 19:18; Then he *said to Him, "Which ones?" And Jesus said, "YOU SHALL NOT COMMIT MURDER; YOU SHALL NOT COMMIT ADULTERY; YOU SHALL NOT STEAL; YOU SHALL NOT BEAR FALSE WITNESS;
Matt 19:19; HONOR YOUR FATHER AND MOTHER; and YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF."
Luke 10:25; And a lawyer stood up and put Him to the test, saying, "Teacher, what shall I do to inherit eternal life?"
Luke 10:26; And He said to him, "What is written in the Law? How does it read to you?"
Luke 10:27; And he answered, "YOU SHALL LOVE THE LORD YOUR GOD WITH ALL YOUR HEART, AND WITH ALL YOUR SOUL, AND WITH ALL YOUR STRENGTH, AND WITH ALL YOUR MIND; AND YOUR NEIGHBOR AS YOURSELF."
Luke 10:28; And He said to him, "You have answered correctly; DO THIS AND YOU WILL LIVE."
Note: The upper-case letters are not my doing. Whenever the NASB quotes the old testament, it puts the letters in upper-case.
Jas 2:8; If, however, you are fulfilling the royal law according to the Scripture, "YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF," you are doing well.