Parallel
Hebrews 6:16
Patriarchal Greek New Testament (1904) · Berean Standard Bible
ἄνθρωποι μὲν γὰρ κατὰ τοῦ μείζονος ὀμνύουσι, καὶ πάσης αὐτοῖς ἀντιλογίας πέρας εἰς βεβαίωσιν ὁ ὅρκος·
Men swear by someone greater than themselves, and their oath serves as a confirmation to end all argument.