they continued with one purpose

Possible meanings are 1) "they continued meeting together" or 2) "they all continued to have the same attitude."

they broke bread in homes

Bread was part of their meals. AT: "they eat meals together in their homes" (See: rc://en/ta/man/translate/figs-synecdoche)

Here "heart" is a metonym for a person's emotions. AT: "joyfully and humbly" (See: rc://en/ta/man/translate/figs-metonymy)

"praising God. All the people approved of them"

This can be stated in active form. AT: "those whom the Lord saved" (See: rc://en/ta/man/translate/figs-activepassive)