34 Wherefore, not without cause do We use this occasion to state again what We have stated elsewhere, namely, that the Third Order of St. Francis, whose discipline We a little while ago prudently mitigated,(16) should be studiously promoted and sustained; for the whole object of this Order, as constituted by its founder, is to invite men to an imitation of Jesus Christ, to a love of the Church, and to the observance of all Christian virtues; and therefore it ought to be of great influence in suppressing the contagion of wicked societies. Let, therefore, this holy sodality be strengthened by a daily increase. Amongst the many benefits to be expected from it will be the great benefit of drawing the minds of men to liberty, fraternity, and equality of right; not such as the Freemasons absurdly imagine, but such as Jesus Christ obtained for the human race and St. Francis aspired to: the liberty, We mean, of sons of God , through which we may be free from slavery to Satan or to our passions, both of them most wicked masters; the fraternity whose origin is in God, the common Creator and Father of all; the equality which, founded on justice and charity, does not take away all distinctions among men, but, out of the varieties of life, of duties, and of pursuits, forms that union and that harmony which naturally tend to the benefit and dignity of society.
Source: Humanum Genus (Vatican.va)