As certain church leaders in the city of Antioch ministered to the Lord, we are told that “the Holy Spirit said, ‘Separate me Barnabas and Saul for the work whereunto I have called them’” (Acts 13:2). Clearly the language of this passage suggests that the Holy Spirit is a personality.
The text affirms that the Spirit said certain things; moreover, the first person pronoun moi (me) is used of the One speaking. It is well-known, of course, that certain cultists deny that the Spirit of God is a Person.
The Watchtower Witnesses, for example, claim that “the holy spirit” (they do not capitalize the expression) is simply “the invisible active force of Almighty God which moves his servants to do his will” (What Religion Has Done For Mankind, p. 32).
Therefore, underline: “Holy Spirit said” and “me” in Acts 13:2 and in your margin write: The Spirit is a Person; cf. John 14:26; Acts 10:19-20; 15:28; 16:6.
These and numerous other New Testament verses establish the fact that the Holy Spirit is a divine Person.