[1] Hancorne was given the rectorship of St Donats on 13 July 1674 and Llandow on 16 December 1681, and was appointed as the curate of Monknash on 17 November 1687.

On 18 April 1710, Hancorne gave the county of Swansea's assize sermon (The right way to honour and happiness), during which he complained of the "rapid growth of deist, freethinking and anti-trinitarian views.

"[2][3] The targets of his wrath were "irreligion, profaneness and immorality", as well as the "curious, inquisitive sceptics" and the "sin-sick tottering nation".

The Hancorne family were involved in the "Sea Serjeants", led by Sir John Philipps, 6th Baronet.

On 17 June 1718, he was made the prebendary of Llandaff Cathedral, Prebend of St Dubritius, which he retained until his death.