Why is God hyphenated, as if it can’t be said?? GOD!
It is a sign of respect in Judaism. (A fuller explanation.)
Not sure. We are told to call upon His name.
Zechariah 13:9
(9) And I will bring the third part through the fire, and will refine them as silver is refined, and will try them as gold is tried; they shall call on My name, and I will answer them; I will say: ‘It is My people’, and they shall say: ‘YHWH is my God.’
For Jewish people it is a matter of holy respect for God. It is a very sacred matter to them. (I’m a Catholic btw and I know this to be true.)
Because it’s a way of preventing the misuse of His Name or the deletion of it when it’s typed or written.