In believing that, you will be filled with the Holy Spirit and with joy. But I don't think Paul and Luke use this phrase to refer to the same thing. For Luke, it is essentially the same as being filled with the Spirit and refers to that first introductory experience of this fullness. I'll try to show very briefly why I think this. First, we must never assume that a particular phrase means exactly the same thing every place it occurs in Scripture.
Good interpretation lets a word or phrase mean whatever the immediate context demands.
What really matters in Scripture is not that a phrase everywhere have the same meaning but that the reality which a phrase describes does not contradict other descriptions of reality in the Bible. Paul uses the phrase only once. According to this one reference Paul conceived of Spirit-baptism as the act by which the Spirit made us members of Christ's body. The evidence for this comes from the book of Acts. This was a clear reference to Pentecost.