“There is a wide difference between what it is lawful for the church to do on those occasions when God in His providence may be calling its members to weeping and humiliation, or summoning them to special joy and thanksgiving, and what it is lawful for the Church to do in the way of setting up a standing part of its permanent worship.”
From the Directory for Publick Worship:
“Touching Days and Places for Publick Worship.
THERE is no day commanded in scripture to be kept holy under the gospel but the Lord’s day, which is the Christian Sabbath.
Festival days, vulgarly called Holy-days, having no warrant in the word of God, are not to be continued.
Nevertheless, it is lawful and necessary, upon special emergent occasions, to separate a day or days for publick fasting or thanksgiving, as the several eminent and extraordinary dispensations of God’s providence shall administer cause and opportunity to his people.
As no place is capable of any holiness, under pretence of whatsoever dedication or consecration; so neither is it subject to such pollution by any superstition formerly used, and now laid aside, as may render it unlawful or inconvenient for Christians to meet together therein for the publick worship of God. And therefore we hold it requisite, that the places of publick assembling for worship among us should be continued and employed to that use.”