The Kumaras did not accept the offering of their father (Lord Brahma) because they were elevated far beyond the business of generating a great number of sons

Expressions researched:
"the Kumaras did not accept the offering of their father because they were elevated far beyond the business of generating a great number of sons"

SB Canto 3

Brahmā, as the father of Rudra, selected the wives of his son, his living places, and his names as well. It is natural that one should accept the wife selected by one's father, just as a son accepts the name given by the father or as he accepts the property offered by the father. That is the general course in increasing the population of the world. On the other hand, the Kumāras did not accept the offering of their father because they were elevated far beyond the business of generating a great number of sons.

SB 3.12.14, Translation and Purport:

My dear boy, you may now accept all the names and places designated for you and your different wives, and since you are now one of the masters of the living entities, you may increase the population on a large scale.

Brahmā, as the father of Rudra, selected the wives of his son, his living places, and his names as well. It is natural that one should accept the wife selected by one's father, just as a son accepts the name given by the father or as he accepts the property offered by the father. That is the general course in increasing the population of the world. On the other hand, the Kumāras did not accept the offering of their father because they were elevated far beyond the business of generating a great number of sons. As the son can refuse the order of the father for higher purposes, so the father can refuse to maintain his sons in increasing population because of higher purposes.