'Point' in the Bible

The sin of Judah is written with a pen of iron, With the point of a diamond, Graven on the tablet of their heart, And on the horns of your altars,

To melt the heart, and to multiply the ruins, By all their gates I have set the point of a sword. Ah, it is made for brightness, Wrapped up for slaughter.

for whoever the whole law shall keep, and shall stumble in one point, he hath become guilty of all;