Ecclesiastes 5:2-6

²Cause not thy mouth to hasten, and let not thy heart hasten to bring out a word before God, for God is in the heavens, and thou on the earth, therefore let thy words be few.

³For the dream hath come by abundance of business, and the voice of a fool by abundance of words.

⁴When thou vowest a vow to God, delay not to complete it, for there is no pleasure in fools; that which thou vowest — complete.

⁵Better that thou do not vow, than that thou dost vow and dost not complete.

⁶Suffer not thy mouth to cause thy flesh to sin, nor say before the messenger, that 'it is an error,' why is God wroth because of thy voice, and hath destroyed the work of thy hands?