📖 Biblical Definition
An oath-keeper is one who, having sworn an oath, performs it — even when it costs him. Psalm 15 describes the man who shall abide in God’s tabernacle and dwell on His holy hill: "He that sweareth to his own hurt, and changeth not" (v. 4). The Marine’s oath of enlistment, the citizen’s oath of allegiance, the marriage oath at the altar, the membership oath of the local church, the ordination oath of the elder — all rise or fall on this character. "Better is it that thou shouldest not vow, than that thou shouldest vow and not pay" (Ecclesiastes 5:5). Christ commands plain yes-and-no speech (Matthew 5:33-37), but where oaths are sworn, they must be kept. A man’s word is his bond.
📜 Webster 1828 Definition
One who keeps his oath; one who performs the obligation he has sworn to perform.
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Oath in Webster: “a solemn affirmation or declaration, made with an appeal to God for the truth of what is affirmed.”
Scripture takes oaths with extreme seriousness. Once sworn, an oath binds the swearer; even self-imposed loss does not loose it (Ps 15:4). Christ's ‘swear not at all’ (Mt 5:34) counters frivolous swearing, not solemn covenantal oaths.
📖 Key Scripture
Psalm 15:4 — "He that sweareth to his own hurt, and changeth not."
Numbers 30:2 — "If a man vow a vow unto the LORD, or swear an oath to bind his soul with a bond; he shall not break his word, he shall do according to all that proceedeth out of his mouth."
Ecclesiastes 5:5 — "Better is it that thou shouldest not vow, than that thou shouldest vow and not pay."
Hebrews 6:17 — "God, willing more abundantly to shew unto the heirs of promise the immutability of his counsel, confirmed it by an oath."
⚠️ Modern Corruption
Modern culture treats oaths as ceremonial; Scripture treats them as binding even to one's own hurt.
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Psalm 15:4 ranks among the strongest verses on oath-keeping: he that sweareth to his own hurt, and changeth not. The man honored at God's table is the one who keeps the oath even when keeping it costs him.
The Marine, the spouse, the citizen, the church member each take oaths. The kingdom is built of oath-keepers. Cultures collapse when oaths become decorative; cultures rebuild when men decide their word is worth keeping.
🔗 Greek & Hebrew Roots
Hebrew shaba (to swear) is the foundational verb; cognate with sheva (seven), the number of completion.
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Hebrew shaba — to swear; cognate with the number seven, the number of completion.
Note: Beersheba (well of seven / well of the oath) preserves the connection.
Usage
"Sworn to his own hurt and changeth not — the man God seats at His table."
"Better not vow than vow and not pay."
"Cultures rebuild when men decide their word is worth keeping."