The Vulgate Bible was the first to unify the old and new testsments under a single language and was, by and large, the basis for the King James Bible.

Example, the Latin in the Vulgate is pretty easy to follow:

1 In principio creavit Deus caelum et terram.

1 In the beginning God created the heaven and the earth.

2 Terra autem erat inanis et vacua, et tenebrae erant super faciem abyssi: et spiritus Dei ferebatur super aquas.

2 And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.

3 Dixitque Deus: Fiat lux. Et facta est lux.

3 And God said, Let there be light: and there was light.

4 Et vidit Deus lucem quod esset bona: et divisit lucem a tenebris.

4 And God saw the light, that it was good: and God divided the light from the darkness.