The members of the Missionary Society of St Paul are those who have taken the permanent oath of membership; and those who have taken the temporary oath of membership.
By virtue of one and the same oath, all are members of the Society, with no distinctions, other than those foreseen by Canon Law.
The right admitting to membership, either temporary or permanent, belongs to the Superior General with the deliberative vote of his Council.
In the Society the Missionary commitment is made by a solemn oath; it is this oath which admits to membership of the Society. The member consecrates himself totally to God as a missionary and unites himself with others in the Society and to mission.
The secular priest members of the Institute are incorporated into it by the oath of membership and are dedicated to the missionary apostolate. By the oath of membership, members undertake the observance of evangelical counsels of perfect chastity, evangelical poverty and obedience in imitation of Christ. The members who live as a community of priests in the Church carry out, in a special way, the missionary mandate and commitment of the Catholic Church.