'Need' in the Bible

But don't let him off unpunished, since you're a wise man and you'll know what you need to do to him. Find a way that he dies in his old age by shedding his blood."

And may what I've had to say to the LORD remain with the LORD our God both day and night, so that he may defend the cause of his servant and the cause of his people Israel, as the need of the day may require it,