Of the different oaths.

Since oaths which contribute something to the glory of God and the well-being of the brethren have been permitted to Christians (as long as they are taken in judgment, justice and truth) so any levity of swearing, which flies about in our everyday conversations with friends, must be completely cut out of our minds and speech. For reverence for God is diminished by these latter kinds, and easily falls into perjury. Therefore, if those who are contaminated by the perverse habit of swearing cannot abstain from it after having been warned to do so, they must be coerced by just punishment (since they are despisers of God's name and of divine things).

Of the penalty for swearing rashly.

Whoever hears any person swearing rashly, or without good reason, shall immediately admonish him to pay twelve pence on the following Sunday to the common fund which is called the poor box, and to place the money in the box of that place in which the crime of swearing has been committed. And if the accused person neglects to do this, his name shall be referred to the ordinary by the person who heard him swear, [and] he shall summon the person and prescribe a penalty for his fault which shall be paid publicly, nor shall he be dispensed from the fine of twelve pence.

The form of the public penalty and of a lawful oath?

The public penalty for someone who swears rashly shall be this, that he shall stand with his head bared in front of the pulpit, and in a place higher than where everyone else is, during the reciting of the homily on Sunday, and when that is finished he shall immediately confess, in the same place, that he earnestly repents of the rashness by which he abused the most holy name of God by swearing without cause.

Forma legitimi iuramenti.\

Legitimum autem iuramentum eis verbis, et nullis aliis, suscipi volumus: ‘Ita me Deus adiuvet per Dominum nostrum Iesum Christum adiuvet.’

Periuriurn quid sit.

Ut facilius a scelere periuriorum abesse possimus, primum explicanda nobis erit eius natura, deinde patefaciendum quam gravis in eo sit Dei offensio. Periurium autem est mendacium iuramento confirmatum, vel iuramenti liciti violatio.