The formula used by Eugene was:
In the name of Our Lord Jesus Christ, in the presence of the Most Holy Trinity, the Blessed Virgin Mary, all the Angels and all the Saints, all my brothers here assembled, I, Charles Joseph Eugene de Mazenod, profess, promise to God and vow perpetual chastity and obedience; I swear and likewise vow to persevere until death in the holy institute and society of the Missionaries known as Missionaries of Provence. So help me God.
Eugene de Mazenod missionary priest
Oblation formula, 1 November 1818, EO XV, n.149
What today’s Oblate Rule of Life says about the first commitment of the novices, is a direct application of the sentiment of the first commitment of Eugene and his companions in 1818.
Novitiate formation ends with a free and faith-filled commitment in the Oblate Congregation. The novice, having experienced the Father’s love in Jesus, dedicates his life to making that love visible. He entrusts his fidelity to the one whose cross he shares, whose promises are his hope.
CC&RR Constitution 59