There is an amazing prophecy about God chosen King Jesus Christ, but we need to compare what God revealed to two great prophets about the King, and if we compare and analyze the expectation of God, we can find out that its all pointing to Jesus Christ the King of kings.
God to Moses about the Messiah - you may indeed set a king over you whom the Lord your God will choose
When you come to the land that the Lord your God is giving you, and you possess it and dwell in it and then say, ‘I will set a king over me, like all the nations that are around me,’
you may indeed set a king over you. whom the Lord your God will choose (Behold! My Servant whom I have chosen, My Beloved in whom My soul is well pleased! - Matthew 12:18a)
One from among your brothers you shall set as king over you. You may not put a foreigner over you, who is not your brother. (Jesus Christ our Lord, who was born of the seed of David according to the flesh - Romans 1:3b)
Only he must not acquire many horses for himself or cause the people to return to Egypt in order to acquire many horses, since the Lord has said to you, ‘You shall never return that way again.’ (Even the King Solomon failed in this expectation - Also Solomon had horses imported from Egypt and Keveh; the king’s merchants bought them in Keveh at the current price - 1 Kings 10:28)
And he shall not acquire many wives for himself, lest his heart turn away (Even the King Solomon failed in this expectation - And he had seven hundred wives, princesses, and three hundred concubines; and his wives turned away his heart - 1 Kings 11:3)
nor shall he acquire for himself excessive silver and gold. (Even the King Hezekiah failed in this expectation - Hezekiah had very great riches and honor. And he made himself treasuries for silver, for gold, for precious stones, for spices, for shields, and for all kinds of desirable items - 2 Chronicles 32:27)
“And when he sits on the throne of his kingdom, he shall write for himself in a book a copy of this law, approved by the Levitical priests. And it shall be with him, and he shall read in it all the days of his life, that he may learn to fear the Lord his God by keeping all the words of this law and these statutes, and doing them, (The only one who fulfilled this expectation is Jesus Christ - Which one of you convicts me of sin? If I tell the truth, why do you not believe me? - John 8:46)
that his heart may not be lifted up above his brothers, and that he may not turn aside from the commandment, either to the right hand or to the left, (Even the King David failed in this expectation - Nevertheless the king’s word prevailed against Joab and against the captains of the army. Therefore Joab and the captains of the army went out from the presence of the king to count the people of Israel - 2 Samuel 24:4)
so that he may continue long in his kingdom, he and his children, in Israel - Deuteronomy 17:14-20
God to Samuel about People Choice - for they have not rejected you, but they have rejected me from being king over them
Then all the elders of Israel gathered together and came to Samuel at Ramah and said to him, “Behold, you are old and your sons do not walk in your ways. Now appoint for us a king to judge us like all the nations.” But the thing displeased Samuel when they said, “Give us a king to judge us.” And Samuel prayed to the Lord. And the Lord said to Samuel, “Obey the voice of the people in all that they say to you, for they have not rejected you, but they have rejected me from being king over them.
According to all the deeds that they have done, from the day I brought them up out of Egypt even to this day, forsaking me and serving other gods, so they are also doing to you. Now then, obey their voice; only you shall solemnly warn them and show them the ways of the king who shall reign over them.” So Samuel told all the words of the Lord to the people who were asking for a king from him. He said, “These will be the ways of the king who will reign over you:
he will take your sons and appoint them to his chariots and to be his horsemen and to run before his chariots.
And he will appoint for himself commanders of thousands and commanders of fifties,
and some to plow his ground and to reap his harvest, and to make his implements of war and the equipment of his chariots.
He will take your daughters to be perfumers and cooks and bakers.
He will take the best of your fields and vineyards and olive orchards and give them to his servants.
He will take the tenth of your grain and of your vineyards and give it to his officers and to his servants.
He will take your male servants and female servants and the best of your young men and your donkeys, and put them to his work.
He will take the tenth of your flocks, and you shall be his slaves.
And in that day you will cry out because of your king, whom you have chosen for yourselves, but the Lord will not answer you in that day.” The Lord Grants Israel's Request But the people refused to obey the voice of Samuel. And they said, “No! But there shall be a king over us, that we also may be like all the nations, and that our king may judge us and go out before us and fight our battles.” - 1 Samuel 8:4-19
What God spoke to Moses is about the Messiah, and its very clear that no one could fit God's expectation other than Lord Jesus Christ.
And What God revealed to Samuel is about the earthly Kings that we might have desired or supported, But we need to stop looking for earthly Kings or Presidents, and Look for our everlasting King Jesus Christ.