Faith and repentance, i. e. believing Jesus to be the Messiah, and a good life, are the indispensable conditions of the new covenant, to be performed by all those who would obtain eternal life. The reasonableness, or rather necessity of which, that we may the better comprehend, we must a little look back to what was said in the beginning.

§ 106 - The Reasonableness of Christianity (1695)