The word brahma-bandhu is significant. A person who happens to take birth in the family of a brahmana but is not qualified to be called a brahmana is addressed as the relative of a brahmana, and not as a brahmana. The son of a high court judge is not virtually a high court judge, but there is no harm in addressing a high court judge's son as a relative of the Honourable Justice.
Therefore, as by birth only one does not become a high court judge, so also one does not become a brahmana simply by birthright but by acquiring the necessary qualifications of a brahmana. As the high court judgeship is a post for the qualified man, so also the post of a brahmana is attainable by qualification only.
The sastra enjoins that even if good qualifications are seen in a person born in a family other than a brahmara, the qualified man has to be accepted as a brahmara, and similarly if a person born in the family of a brahmana is void of brahmanical qualification, then he must be treated as a Non-brahmana or, in better terms, a relative of a brahmana. SB 1.7.35
Therefore, as by birth only one does not become a high court judge, so also one does not become a brahmana simply by birthright but by acquiring the necessary qualifications of a brahmana. As the high court judgeship is a post for the qualified man, so also the post of a brahmana is attainable by qualification only.
The sastra enjoins that even if good qualifications are seen in a person born in a family other than a brahmara, the qualified man has to be accepted as a brahmara, and similarly if a person born in the family of a brahmana is void of brahmanical qualification, then he must be treated as a Non-brahmana or, in better terms, a relative of a brahmana. SB 1.7.35