'Rashly' in the Bible

Or if someone swears rashly to do what is good or evil—concerning anything a person may speak rashly in an oath—without being aware of it, but later recognizes it, he incurs guilt in such an instance.

for they embittered his spirit,and he spoke rashly with his lips.

There is one who speaks rashly,like a piercing sword;but the tongue of the wise brings healing.

It is a trap for anyone to dedicate something rashlyand later to reconsider his vows.