Go forth and Go out

Go forth verb - Go away from a place.

Go out and go forth are semantically related in depart topic. In some cases you can use "Go out" instead a verb "Go forth", when it comes to topics like come out, get out.

Go out verb - Move out of or depart from.

Go forth and go out are semantically related in depart topic. Sometimes you can use "Go forth" instead a verb "Go out", if it concerns topics such as come out, get out.