Acts 2:38 vs Matthew 28:20- “In” vs “On” – By what nuance of meaning would Jesus use εἰς (eis) in Matthew while Peter would use ἐπί (epi) in Acts

By what nuance of meaning, in context, would Jesus use εἰς (eis) in Matthew and while Peter would use ἐπί (epi) in Acts? In Matthew 28:19, Jesus instructs his disciples regarding the nations, that they are to be "…baptizing them in …