He had also that true missionary gift, a great facility of languages, both in grammar and pronunciation, and his utter absence of all regard for his own comfort or selfish dignity, yet his due respect to times and places made him able to penetrate everywhere, from the hut to the palace.
The Carnatic war was at this time an impediment, by keeping the minds of all the natives in a state of excitement and anxiety, from dread of Mahratta incursions; but Schwartz never intermitted his rounds, and was well supported by the Danish Governor, a good man, who often showed himself his friend.

Some of the missionaries were actually made prisoners when the French took Cuddalore, but Count Lally Tollendal was very kind to them, and sent them with all their property and converts safely away to Tranquebar.
The Dutch missionaries in Ceylon had been in correspondence with those of Tranquebar, and had obtained from them copies of their Tamul Bible, and in 1760 Schwartz was sent on a visit to them.

He was very well received by both clergy and laity; and though he was laid up by a severe illness at Colombo, yet he was exceedingly well contented with his journey and his conferences with his brethren.
Christian Schwartz had been more than sixteen years in India, and was forty years of age, before his really distinctive and independent work began, after his long training in the central station at Tranquebar.
The neighbouring district of Tanjore had at different times been visited, and the ministers of the Rajah had shown themselves willing to bestow some reflection on what they heard from the missionaries.

Visits to this place and to Trichinopoly became frequent with him, and in 1766 the Society for Promoting Christian Knowledge having decided on planting a mission station in the latter place, he was appointed to take the charge of it.
About this time he seems to have accommodated his name to English pronunciation, and to have always written it Swartz.

It was now that he became acquainted with William Chambers, Esq., brother to the Chief Justice of Bengal,--not a Company's servant, but a merchant, and an excellent man, who took great interest in missionary labours, and himself translated a great part of St.Matthew's Gospel into Persian, the court language of India.