the Holy Spirit:

the personal presence and power of Allah himself at work among people, also called the Spirit of Allah. It was by his Spirit that Allah inspired the prophets and apostles to write the Scriptures and empowered them to do miracles. Ten days after Isa the Messiah ascended to heaven, Allah sent his Holy Spirit to guide, instruct, and empower the followers of Isa (Luke 24:49; John 14:26; Acts 1:4-5; Acts 2:1-4) and to cleanse their hearts (1 Corinthians 6:11) and to fill them with love, joy, and peace (Galatians 5:22; Romans 14:17).