In the beginning of the nation of Israel, God was their King. After the years of the judges and at the time of Samuel, the last judge, the people decided they wanted a king like the other nations.

Samuel was not happy with the people, and went to the LORD.

"And the LORD said unto Samuel, Hearken unto the voice of the people in all that they say unto thee: for they have not rejected thee, but they have rejected me, that I should not reign over them." - 1 Samuel 8:7

God told Samuel to warn the people of all the problems they would have if a man was their king instead of God.

"Nevertheless the people refused to obey the voice of Samuel; and they said, Nay; but we will have 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 8:19-20

As many years went by and kings came and went, none could be a substitute for God as their King.

Then "the fullness of time" arrived.

"But when the fulness of the time was come, God sent forth his Son, made of a woman, made under the law, to redeem them that were under the law, that we might receive the adoption of sons." - Galatians 4:4-5

Just a short time after Israel’s covenant of the law with God at Mt. Sinai, there was the first sin of the Jewish people as a nation with the golden calf. Israel needed a Redeemer.

Now, in the fulness of time, God Himself would pay the price of sin with the shedding of His very own blood. (Acts 20:28).

The Lord overshadowed a young virgin, causing her to conceive. This baby boy was God in flesh, the Redeemer. (1 Timothy 3:16, Titus 2:13-14).

"And she shall bring forth a son, and thou shalt call his name JESUS: for he shall save his people from their sins." - Matthew 1:21

"Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel, which being interpreted is, God with us." - Matthew 1:23

Not only did God come as Redeemer: He came as King.

The wise men from the east came seeking this King,

"Saying, Where is he that is born King of the Jews? for we have seen his star in the east, and are come to worship him." - Matthew 2:2

God would once again be King of the Jews. This time, God would be the King that every eye could see. (Revelation 1:7). He would be the Righteous Judge. (2 Timothy 4:8). He would go out before His people, and fight their battles. (Revelation 17:14). God, as the Lamb of sacrifice which taketh away the sin of the world, is this King. (Revelation 5:6).  His name is JESUS. (John 1:29).

"These shall make war with the Lamb, and the Lamb shall overcome them: for he is Lord of lords, and King of kings: and they that are with him are called, and chosen, and faithful." - Revelation 17:14