CC Ādi 5.9

āpane karena kṛṣṇa-līlāra sahāya
sṛṣṭi-līlā-kārya kare dhari’ cāri kāya
Synonyms: 
āpane — personally; karena — performs; kṛṣṇa-līlāra sahāya — assistance in the pastimes of Lord Kṛṣṇa; sṛṣṭi-līlā — of the pastimes of creation; kārya — the work; kare — does; dhari’ — accepting; cāri kāya — four bodies.
Translation: 
He Himself helps in the pastimes of Lord Kṛṣṇa, and He does the work of creation in four other forms.