A solemn, binding promise, often involving the deposit of valuable items or property as a guarantee that the promise will be kept. To break a pledge is to sin against God.
Pledges were binding
Numbers 30:2See alsoNumbers 30:3-15In certain cases pledges made by daughters or wives could be nullified by fathers or husbands respectively.
Matthew 1:18-19Betrothal was a pledge to marry and as such was much more binding than the modern Western practice of engagement. It could only be broken by divorce and the betrothed woman was already described as a wife.See alsoExodus 22:16;
Deuteronomy 22:23-25;
Luke 1:27