She will legally assume her duties during a confirmation service at St Paul’s Cathedral on Wednesday, ahead of her formal enthronement at Canterbury Cathedral in March.
Having served nearly a decade as Bishop of London and previously as England’s chief nursing officer, Dame Sarah pledged to guide the Church with "calmness, consistency and compassion".
She committed to tackling safeguarding failures, listening to overlooked voices, and ensuring the Church is a kind and safe place, especially for vulnerable individuals and abuse survivors.
Dame Sarah replaces Justin Welby, who resigned over safeguarding issues, and a recent complaint against her handling of an abuse allegation was dismissed.