Suffering should be embraced and redeemed through service even when a result of a miscarriage of justice, Australia's Cardinal George Pell, who spent 404 days in jail before his sexual abuse conviction was overturned this week, wrote on Saturday.

Reiterating his innocence, the highest-ranking Roman Catholic cleric to have been jailed in the church's child sex abuse crisis urged Christians to help those suffering during the coronavirus pandemic.

"Christians see Christ in everyone who suffers — victims, the sick, the elderly — and are obliged to help," Pell wrote in his Easter message in the Weekend Australian, accompanied by a photograph in which he wears his cardinal robes.