## a voice spoke to him ##

The person speaking is not specified. But it can be inferred that the source was from God, not Satan.

## Lord ##

Peter used the term for respect that could be translated as "Lord" or "Sir."

##  I have never eaten anything that was defiled and unclean. ##

It is implied that the animals presented were unclean as defined by the Law of Moses and were not to be eaten. (See: [[rc://en/ta/man/translate/figs-explicit]])