Why do you call the first of the three divine Persons “Father?” (Q41)
From To Be A Christian, An Anglican Catechism
Our Lord Jesus called God “Father” and taught his disciples to do the same, and St. Paul teaches that God adopts believers as his children and heirs in Christ, sending his Holy Spirit into our hearts crying “Abba, Father.” (Matthew 6:9; Romans 8:15-17; Galatians 4:4-7).