Oath

A solemn appeal to God, permitted on fitting occasions (Deut. 6:13; Jer. 4:2), in various forms (Gen. 16:5; 2 Sam. 12:5; Ruth 1:17; Hos. 4:15; Rom. 1:9), and taken in different ways (Gen. 14:22; 24:2; 2 Chr. 6:22). God is represented as taking an oath (Heb. 6:16-18), so also Christ (Matt. 26:64), and Paul (Rom. 9:1; Gal. 1:20; Phil. 1:8). The precept, "Swear not at all," refers probably to ordinary conversation between man and man (Matt. 5:34, 37). But if the words are taken as referring to oaths, then their intention may have been to show "that the proper state of Christians is to require no oaths; that when evil is expelled from among them every yea and nay will be as decisive as an oath, every promise as binding as a vow."

a solemn invocation of a superior power, admitted to be acquainted with all the secrets of our hearts, with our inward thoughts as well as our outward actions, to witness the truth of what we assert, and to inflict his vengeance upon us if we assert what is not true, or promise what we do not mean to perform. Almost all nations, whether savage or civilized, whether enjoying the light of revelation or led only by the light of reason, knowing the importance of truth, and willing to obtain a barrier against falsehood, have had recourse to oaths, by which they have endeavoured to make men fearful of uttering lies, under the dread of an avenging Deity. Among Christians, an oath is a solemn…