The constitution requires that federal judges must

1.)be lawyers

2.)be 50 years of age or older

3.)have previously served as a judge in a state court system

4.)there are no constitutional requirements in order to be a federal judge

The answer is 4. there are no constitutional requirements in order to be a federal judge. The US constitution guides the process for confirming a federal judge, but does not specify qualifications. It is important for a federal judge is not required to possess a law degree unless he serves as magistrate or bankruptcy judge. In most cases the assessors of judicial candidates apply their own criteria. Therefore the presidents and members of congress develop their own standards for federal judgeships. 

The origins are uncertain, but the term almost always occurs in the Hebrew bible as a name given to the Israelites by other people, rather than one used by themselves. Hebrew can also refer to an ancient northern Semetic people that were the ancestors of Jews.