## a high place ##

"a high mountain"

## in a moment of time ##

"in an instant" or "instantly"

## Therefore ##

"So"

## if you will bow down before me and worship me ##

This could be translated as "if you will kneel before me" or "if you will bow down to worship me" or "if you will worship me by bowing down to me."

## all of this will be yours ##

This could be translated as "I will give all these kingdoms to you."