The school girls were taken from a classroom in Chibok by Islamist militant group Boko Haram in April.
The organisation blame westernisation and Christianity for the state of Nigeria and have killed thousands in numerous bomb attacks.
On April 14 a gang from the group entered the school pretending to be guards and took more than 250 of the girls away to a secret location.
Revd Canon Hassan John from the central Nigerian Diocese of Jos told Premier: "We still need a lot of prayers particularly for the families.
"You can imagine, 100 days now, you can imagine what the families are going through.
"More than 90% of those girls are Christian. The church is still going through the trauma of having lost that amount of girls."
There was widespread condemnation of the attack but that has recently faded.
Canon Hassan is urging the international community to keep up the pressure and worries the girls could be forgotten about.
"It is of concern because somehow the steam and tempo seems to have died down, for so many reasons.
"As time drags on it looks like people are losing hope that the girls will ever be found," he said.
Boko Haram has freed a small number of the girls but the large majority still remain in captivity.
Hear more from Canon Hassan here: