'Neglect' in the Bible

The king then said to Haman, "Go quickly! Take the clothing and the horse, just as you have described, and do as you just indicated to Mordecai the Jew who sits at the king's gate. Don't neglect a single thing of all that you have said."

the Jews established and adopted [it] for themselves and for their offspring, and for all who joined them. They did not neglect {to observe} these two days every year as it was written and appointed to them.