We must not stint
Our necessary actions in the fear
To cope malicious censurers, which ever,
As rav'nous fishes, do a vessel follow
That is new-trimmed, but benefit no further
Than vainly longing.
It is our duty not to not only hold fast, but to hold forth the Word of life; not only to hold fast for our own benefit, but to hold it forth for the benefit of others, to hold it forth as the candlestick holds forth the candle, which makes it appear to advantage all around, or as the luminaries of the heavens, which shed their influences far and wide.
Consequently, heretics and schismatics, separated from the unity of this Body, are able to receive the same Sacrament, but with no benefit to themselves; indeed, more to their own harm, in that they are judged the more severely rather than being liberated.