en_tn/act/10/13.md

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)