ග්‍රන්ථකරණය

He is accredited with 22 books in Sinhala, 15 in Tamil, 4 in Portuguese and 1 in Dutch. Although he was a foreigner rather than imitating the Christian works in the West, he produced original works to suit the cultural traits of this country. Sinhala and Tamil Catholics in Sri Lanka owe their Christian vocabulary to Fr. Jacome Gonsalvez.

The most admired work of Fr. Jacome Gonsalvez is "Deva Veda Puranaya". In language and style it resembles the graceful prose presentation in "Pujavaliya". "Deva Neethi Visarjanaya" which gives an account of the last judgement is said to have impressed even King Narendrasinghe of Kandy. "Suvisesha Visadyanaya" contains the Gospel for Sundays and feast days with commentary to be recited in the chanting style of Sinhala prose. In the past when there was no Sunday Mass in churches devotees used to chant the Gospel from it.