'Sure' in the Bible

So be sure that you don't drink wine or anything intoxicating, and don't eat anything unclean

He told me, "Surprise! you're going to conceive and give birth to a son!' and as for you, "Be sure that you don't drink wine or anything intoxicating, and don't eat anything unclean,' "because the young man will be a Nazirite dedicated to God from inside the womb' until the day he dies."

Then Manoah told his wife, "We're going to die for sure, because we've seen God!"

They continued, "Let's make sure that there's an inheritance for the survivors of the tribe of Benjamin, so that a tribe won't be blotted out from Israel.