brahma, siva--ajna-kari bhakta-avatara
palanarthe visnu--krsnera svarupa-akara
brahma—Lord Brahma; siva—Lord Siva; ajna-kari—order carriers; bhakta-avatara—incarnations of devotees; palana-arthe—for maintenance; visnu—Lord Visnu; krsnera—of Lord Krsna; svarupa-akara—in the form of a personal feature.
"The conclusion is that Lord Brahma and Lord Siva are simply devotee incarnations who carry out orders. However, Lord Visnu, the maintainer, is the personal feature of Lord Krsna.
Link to this page: https://prabhupadabooks.com/cc/madhya/20/317