'Sharp' in the Bible

And this is how you are to make them clean: let the holy water which takes away sin be put on them, and let the hair all over their bodies be cut off with a sharp blade, and let their clothing be washed and their bodies made clean.

When the assembly is to be gathered, you shall blow [the trumpets in short, sharp tones], but without sounding an alarm.

Sweet is the memory of the fish we had in Egypt for nothing, and the fruit and green plants of every sort, sharp and pleasing to the taste: