A vow is a solemn, binding promise made to God. Unlike casual promises between people, biblical vows invoke the name and character of God as witness and guarantor. They carry the weight of a covenant — once made, they must be kept (Ecclesiastes 5:4–5). Vows in Scripture include Jacob's vow at Bethel (Genesis 28:20–22), Hannah's vow for a son (1 Samuel 1:11), the Nazirite vow of consecration (Numbers 6), and marriage vows. Jesus elevated the standard by calling His followers to let their "yes be yes and no be no" (Matthew 5:37) — a life of such integrity that all speech functions as a vow.
VOW, n. [L. votum.] A solemn promise made to God, or by a person devoted to God; a promise of fidelity or constancy. Vow is used in Scripture for a promise voluntarily made, or for a price or gift dedicated to God. When thou vowest a vow unto God, defer not to pay it. Ecclesiastes 5:4.
Modern culture has hollowed out the vow to the point of meaninglessness. Marriage vows — once understood as solemn covenants before God — are now treated as aspirational intentions, subject to revision when feelings change. The divorce rate among professing Christians tracks closely with the secular world, revealing that vows are made but not kept. In broader culture, "vows" are seen as relics of an unenlightened era when people made permanent commitments. The biblical understanding insists: vows matter precisely because God hears them, God holds them, and breaking them is a sin against God — not just against the other party.
• Ecclesiastes 5:4–5 — "When you vow a vow to God, do not delay paying it... It is better that you should not vow than that you should vow and not pay."
• Numbers 30:2 — "If a man vows a vow to the LORD... he shall not break his word. He shall do according to all that proceeds out of his mouth."
• Psalm 76:11 — "Make your vows to the LORD your God and perform them."
• Matthew 5:37 — "Let what you say be simply 'Yes' or 'No'; anything more than this comes from evil."
• 1 Samuel 1:11 — "O LORD of hosts, if you will... give to your servant a son, then I will give him to the LORD all the days of his life."
Hebrew: H5088 — נֶדֶר (neder) — vow, pledge made to God
Hebrew: H7650 — שָׁבַע (shava) — to swear, take an oath
Greek: G2171 — εὐχή (euchē) — prayer, vow
Greek: G3727 — ὅρκος (horkos) — oath, sworn pledge
• Marriage is the most common and binding vow in everyday life — made before God and witnesses, not to be dissolved by mere preference.
• The Nazirite vow was voluntary but, once made, wholly binding — illustrating that God takes us at our word.
• A man of integrity does not need elaborate vows because his word already carries the weight of a vow. (Matthew 5:37)