Chapter 26 — Part III — The Ten Commandments
Section 535. Q. Does not this go to forbid all oaths in civil matters? A. The Apostle Paul says: Men swear by the greater; and an oath for confirmation is to them an end of all strife. Wherein God, willing more abundantly to show unto the heirs of promise the immutability of his counsel, confirmed it by an oath. Heb. vi. 16, 17. Hence we must conclude, that if God himself for an immutable assurance used an oath, much more may we on grave and necessary occasions, when required by lawful authority, take an oath or vow religiously, with the firm intention of not breaking it.