That promise is for us, New Testament habitation of the Holy Spirit. God is with us. Our lives testify to the same outpouring as the Biblical heroes, the same kinds of miracles. It’s an error to think “that was then, and this is now.” The book of Acts does not end with the word “amen,” unlike most other New Testament books; this signifies that the “acts” of the Holy Spirit continue in and through us.
God offers no less for us than for them. Our only limitation is our own lack of faith. He responds to faith and is shocked by lack of faith. When you pray — whether it be for health, deliverance or finances — realize He is with you in the same way He was with Moses and Joshua.