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Of Lawful Oaths and Vows

Section 23.2

The name of God only is that by which men ought to swear, and therein it is to be used with all holy fear and reverence. Therefore to swear vainly, or rashly, by that glorious or dreadful name, or to swear at all by any other thing, is sinful and to be abhorred. Yet as in matters of weight and moment an oath is warranted by the Word of God under the New Testament, as well as under the Old; so a lawful oath, being imposed by lawful authority in such matters, ought to be taken.

See also in WCF: 22.1 Compare: Of Lawful Oaths and Vows
Deut. 6:13
[13] It is the LORD your God you shall fear. Him you shall serve and by his name you shall swear.
Exod. 20:7
[7] “You shall not take the name of the LORD your God in vain, for the LORD will not hold him guiltless who takes his name in vain.
Jer. 5:7
[7] “How can I pardon you? Your children have forsaken me and have sworn by those who are no gods. When I fed them to the full, they committed adultery and trooped to the houses of whores.
Matt. 5:34, 37
[34] But I say to you, Do not take an oath at all, either by heaven, for it is the throne of God, [37] Let what you say be simply ‘Yes’ or ‘No’; anything more than this comes from evil.
James 5:12
[12] But above all, my brothers, do not swear, either by heaven or by earth or by any other oath, but let your “yes” be yes and your “no” be no, so that you may not fall under condemnation.
Heb. 6:16
[16] For people swear by something greater than themselves, and in all their disputes an oath is final for confirmation.
2 Cor. 1:23
[23] But I call God to witness against me — it was to spare you that I refrained from coming again to Corinth.
Isa. 65:16
[16] so that he who blesses himself in the land shall bless himself by the God of truth, and he who takes an oath in the land shall swear by the God of truth; because the former troubles are forgotten and are hidden from my eyes.
1 Kings 8:31
[31] “If a man sins against his neighbor and is made to take an oath and comes and swears his oath before your altar in this house,
Neh. 13:25
[25] And I confronted them and cursed them and beat some of them and pulled out their hair. And I made them take an oath in the name of God, saying, “You shall not give your daughters to their sons, or take their daughters for your sons or for yourselves.
Ezra 10:5
[5] Then Ezra arose and made the leading priests and Levites and all Israel take an oath that they would do as had been said. So they took the oath.
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Chapter 23: Of Lawful Oaths and Vows

The right use of lawful oaths and vows

Of Lawful Oaths and Vows

Section 23.1

A lawful oath is a part of religious worship, wherein the person swearing in truth, righteousness and judgment, solemnly calleth God to witness what he asserteth or promiseth, and to judge him according to the truth or falsehood of what he sweareth.

Of Lawful Oaths and Vows

Section 23.2

The name of God only is that by which men ought to swear, and therein it is to be used with all holy fear and reverence. Therefore to swear vainly, or rashly, by that glorious or dreadful name, or to swear at all by any other thing, is sinful and to be abhorred. Yet as in matters of weight and moment an oath is warranted by the Word of God under the New Testament, as well as under the Old; so a lawful oath, being imposed by lawful authority in such matters, ought to be taken.

Of Lawful Oaths and Vows

Section 23.3

Whosoever taketh an oath, warranted by the Word of God, ought duly to consider the weightiness of so solemn an act, and therein to avouch nothing but what he is fully persuaded is the truth: neither may any man bind himself by oath to any thing, but what is good and just, and what he believeth so to be, and what he is able and resolved to perform. Yet it is a sin to refuse an oath touching any thing that is good and just, being lawfully imposed by authority.

Of Lawful Oaths and Vows

Section 23.4

An oath is to be taken in the plain and common sense of the words, without equivocation or mental reservation. It cannot oblige to sin, but in any thing not sinful, being taken it binds to performance, although to a man's own hurt; nor is it to be violated, although made to heretics or infidels.

Of Lawful Oaths and Vows

Section 23.5

A vow, which is not to be made to any creature, but God alone, is of the like nature with a promissory oath, and ought to be made with the like religious care, and to be performed with the like faithfulness.

Of Lawful Oaths and Vows

Section 23.6

Popish monastical vows of perpetual single life, professed poverty, and regular obedience, are so far from being degrees of higher perfection, that they are superstitious and sinful snares, in which no Christian may entangle himself.