I know its /silt message 50, it prints the word message in the size 50 on the sign, but what i want to know is how to add spaces to the message.
Like /silt Who goes there 50.

I Did try /silt who goes there 50, but all it does is just printing the first word "who" without any other change.

/silt "this is your message"

It worked
Now i just feel dumb for not even trying "" aswell before posting..
Oh well, thx for help