[color=red]1) They speak to him as a god.
[color=indigo]2) They speak to him like a god.
[color=red]3) They speak to him as to a god.
[color=indigo]4) They speak to him like to a god.
Which of the above sentences is correct and means (or at least could mean) they speak to him as if he were a god?
Gratefully,
Navi.