Confirmation: Where did it come from?

Confirmation, believe it or not, is first present in the Old Testament, before it was ever implemented as a Sacrament. Go back to the early days of Israel, when there was still a debate as to how the people would be ruled just like any other nation; though they were God's people, they needed someone to help protect them on Earth, channeling God's wisdom. Eventually, it was decided that:
1. Israel would act as a monarchy, with one solitary ruler.
2. The mother of the ruler was considered to be the "Queen Mother"
and
3. Soldiers were appointed to defend Israel

These three points foreshadow the Sacrament, as God is our solitary ruler, Mary is the Queen Mother, and God needed warriors to defend the faith in the same way the soldiers defended Israel. Thus, all Catholics, since the time of King Solomon, are called to be warriors and defenders of the faith. Thus, the appointment of this duty had to appear at some point, and it does so through Confirmation.

In conclusion, Confirmation acts as a means to renew our faith, affirm our belief in the Catholic Church, and defend the faith at all costs, just like the soldiers of Israel.