@rynow sir..
Christ came that his people might have eternal life, with more abundant evidence of it than was under the former dispensation, and have stronger faith in it, and a more lively hope of it: or, as the words may be rendered, "and that they might have an abundance": besides life, might have an abundance of grace from Christ, all spiritual blessings in him now, and all fulness of joy, glory, and happiness hereafter.