Parallel
1 Peter 3:19
Patriarchal Greek New Testament (1904) · Berean Standard Bible
ἐν ᾧ καὶ τοῖς ἐν φυλακῇ πνεύμασι πορευθεὶς ἐκήρυξεν,
in whom (note: Or in the spirit, 19in which) He also went and preached to the spirits in prison