Do not let your mouth cause your flesh to sin, and do not tell the messenger that your vow was a mistake. Why should God be angry with your words and destroy the work of your hands?
Cross References
Leviticus 4:2"Tell the Israelites to do as follows with one who sins unintentionally against any of the LORD's commandments and does what is forbidden by them:
Leviticus 4:22When a leader sins unintentionally and does what is prohibited by any of the commandments of the LORD his God, he incurs guilt.
Numbers 15:25The priest is to make atonement for the whole congregation of Israel, so that they may be forgiven; for the sin was unintentional and they have brought to the LORD an offering made by fire and a sin offering, presented before the LORD for their unintentional sin.
Treasury of Scripture
Suffer not your mouth to cause your flesh to sin; neither say you before the angel, that it was an error: why should God be angry at your voice, and destroy the work of your hands?
thy mouth
Ecclesiastes 5:1,2
Keep thy foot when thou goest to the house of God, and be more ready to hear, than to give the sacrifice of fools: for they consider not that they do evil…
James 1:26
If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain.
James 3:2
For in many things we offend all. If any man offend not in word, the same is a perfect man, and able also to bridle the whole body.
before
Leviticus 5:4,5
Or if a soul swear, pronouncing with his lips to do evil, or to do good, whatsoever it be that a man shall pronounce with an oath, and it be hid from him; when he knoweth of it, then he shall be guilty in one of these…
Genesis 48:16
The Angel which redeemed me from all evil, bless the lads; and let my name be named on them, and the name of my fathers Abraham and Isaac; and let them grow into a multitude in the midst of the earth.
Hosea 12:4,5
Yea, he had power over the angel, and prevailed: he wept, and made supplication unto him: he found him in Bethel, and there he spake with us; …
it was
Leviticus 4:5-6
And the priest that is anointed shall take of the bullock's blood, and bring it to the tabernacle of the congregation: …
Leviticus 27:9,10
And if it be a beast, whereof men bring an offering unto the LORD, all that any man giveth of such unto the LORD shall be holy…
destroy
Haggai 1:9-11
Ye looked for much, and, lo, it came to little; and when ye brought it home, I did blow upon it. Why? saith the LORD of hosts. Because of mine house that is waste, and ye run every man unto his own house…
Haggai 2:14-17
Then answered Haggai, and said, So is this people, and so is this nation before me, saith the LORD; and so is every work of their hands; and that which they offer there is unclean…
1 Corinthians 3:13-15
Every man's work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man's work of what sort it is…