Canon 53
About how Christians should behave modestly at weddings.
About the fact that Christians should not jump and dance when they go to weddings, but should have dinner or dinner modestly, as befits Christians.
Greek original
Ὅτι οὐ δεῖ Χριστιανοὺς εἰς γάμους ἀπερχόμενους, βαλλίζειν, ἢ ὀρχεῖσθαι, ἀλλὰ σεμνῶς δειπνεῖν ἢ ἀριστᾷν, ὡς πρέπει Χριστιανοῖς.
Parallel canons
Трул.24Лаод.54