It is the duty of God's people thus publicly to own the covenant; and that it was not only a duty in Israel of old, but is so in the Christian church, and to the end of the world; and that it is a duty required of adult persons before they come to sacraments. And this being a point of great consequence in this controversy, but a matter seldom handled, (though it seems to be generally taken for granted,) I shall be the more particular in the consideration of it.