In Deuteronomy 18, we find that the Lord has issued a new command that we should hear. The Lord calls to remembrance the day of the gathering before Mt Horeb, when he had promised to write his laws into their hearts, that the Lord would be their God, and that they would be to him as a kingdom of priests, a holy nation. But the people feared the fire, and did not come up to the mountain as they were instructed, but instead turned their ear from the Lord, and chose to listen to Moses instead. So here in Deuteronomy, we find the promise of Christ, and a new commandment from the Lord.
Deuteronomy 18:15-19 The Lord thy God will raise up unto thee a Prophet from the midst of thee, of thy brethren, like unto me; unto him ye shall hearken; According to all that thou desiredst of the Lord thy God in Horeb in the day of the assembly, saying, Let me not hear again the voice of the Lord my God, neither let me see this great fire any more, that I die not. And the Lord said unto me, They have well spoken that which they have spoken. I will raise them up a Prophet from among their brethren, like unto thee, and will put my words in his mouth; and he shall speak unto them all that I shall command him. And it shall come to pass, that whosoever will not hearken unto my words which he shall speak in my name, I will require it of him.
No matter the ordinances and the laws you asked to obey before Moses because you would not hear my voice in the day of the assembly, these I will not require it of you. But I will raise up onto you a Prophet, and if you do not hearken unto the words that he shall speak in my name, this I shall require it of you.
Matthew 5:38-48 Ye have heard that it hath been said, An eye for an eye, and a tooth for a tooth: But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also. And if any man will sue thee at the law, and take away thy coat, let him have thy cloke also. And whosoever shall compel thee to go a mile, go with him twain. Give to him that asketh thee, and from him that would borrow of thee turn not thou away.
Ye have heard that it hath been said, Thou shalt love thy neighbour, and hate thine enemy. But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you; That ye may be the children of your Father which is in heaven: for he maketh his sun to rise on the evil and on the good, and sendeth rain on the just and on the unjust. For if ye love them which love you, what reward have ye? do not even the publicans the same? And if ye salute your brethren only, what do ye more than others? do not even the publicans so? Be ye therefore perfect, even as your Father which is in heaven is perfect.
Do you hear the words of the Lord? Or are you still trying to please the law and waiting on Moses to tell you that which you should do?
Acts 3:19-23 Repent ye therefore, and be converted, that your sins may be blotted out, when the times of refreshing shall come from the presence of the Lord; And he shall send Jesus Christ, which before was preached unto you: Whom the heaven must receive until the times of restitution of all things, which God hath spoken by the mouth of all his holy prophets since the world began. For Moses truly said unto the fathers, A prophet shall the Lord your God raise up unto you of your brethren, like unto me; him shall ye hear in all things whatsoever he shall say unto you. And it shall come to pass, that every soul, which will not hear that prophet, shall be destroyed from among the people.