Hebrews 6:16

For men verily swear by the greater: and an oath for confirmation is to them an end of all strife.
— Hebrews 6:16, King James Version

In other translations

World English Bible (WEB)

For men indeed swear by a greater one, and in every dispute of theirs the oath is final for confirmation.

American Standard Version (ASV)

For men swear by the greater: and in every dispute of theirs the oath is final for confirmation.

Young's Literal Translation (YLT)

for men indeed do swear by the greater, and an end of all controversy to them for confirmation <FI>is<Fi> the oath,