en_tn_lite_do_not_use/jhn/08/34.md

Truly, truly

See how you translated this in John 1:51.

is the slave of sin

Here the word "slave" is a metaphor. This implies that "sin" is like a master for the one who sins. Alternate translation: "is like a slave to sin" (See: rc://en/ta/man/jit/figs-metaphor)