God gives3,6,8,9,15 the non-miraculous gift of the Holy Spirit because He promised it7,11,12. It was part of His desire to dwell with His people6,11,13 and one of many of God’s great promises comprising man’s redemption1,2,7,9. The sending of His Son was also the Father’s great gift and promise. However, in Acts 2:38-391 it is the promise of “forgiveness of sin”11,12 and the promise of the Holy Spirit9,12,13 (e.g. “the gift of the Holy Spirit”8,9) that Peter directly connects to the great promise of salvation for everyone that’s baptized in the name of the Lord Jesus1,3,4,5,7,9.
Any attempt to disconnect the gift of God’s Spirit (e.g. the personal indwelling of the Spirit) for all “those who obey Him”3 would also require disconnecting “forgiveness of sin”. Doing that is a direct rejection of God’s grace since it is God who gives3,8,9,15 this non-miraculous gift of the Spirit, not an apostle through their laying on of hands! Jesus foretold what Peter announced1 when He said kingdom entrance would require being “born of water and the Spirit”2 – the one baptism14 for all God’s elect.
The bottom line: The non-miraculous gift of the Holy Spirit is foundational to God’s promise(s)6,7,9,11,12,13. God’s gift of the Spirit1,3,8,12,15 through rebirth2,14 (e.g. water baptism) is what makes one holy and sanctified7,10,15 for His dwelling6,11,12,13.