Eclesiastés 5

Give not thy mouth to cause thy flesh to sin: and say not before the angel: There is no providence: lest God be angry at thy words, and destroy all the works of thy hands.

Mejor es que no prometas, que no que prometas y no pagues.

Better is it that thou shouldest not vow, than that thou shouldest vow and not pay.

It is better that you should not vow, than that you should vow and not pay.