I keep my pupils engaged
Like a classroom in holy matrimony

from Ed Sheeran (Ft. Devlin) – Lately Lyrics on Rap Genius

Meaning

Pupils is another word for students, so his pupils (in his eyes) are engaged like the pupils (students) in a classroom

To help improve the meaning of these lyrics, visit “Lately” by Ed Sheeran (Ft. Devlin) Lyrics and leave a comment on the lyrics box