So when the consecration had been solemnly performed, the Bishop came forward in his mitre to consecrate the four altars.

First he dedicated the High Altar in the Choir in honour of the Holy Trinity, the Blessed Mother of God, St.Agnes the Virgin, and the Apostles of Christ, and he sang Mass in solemn wise for the dedication of the church and altar.
Then going out of the Choir into the northern aisle of the church, he dedicated the Altar in the greater chapel in honour of the Holy Cross and the Blessed Martyrs, and afterwards the Altar which is in the midst of the church on the left of the Choir in honour of the Blessed Mary ever Virgin, and of St.Augustine the Bishop, who is Father of our Order.
Lastly, he dedicated the Altar on the south side of the Choir in honour of the most Blessed Mary Magdalene, St.Catherine, St.Cecilia, and the Eleven Thousand Virgins.
This done, masses were celebrated at the several altars, and the Host of Salvation was offered up in all reverence to God.

But after midday, the Brothers being gathered together, he consecrated the burial-ground for the interment of the dead outside the church and on the western and southern side thereof.
On that day he granted Indulgences for forty days to them that were there present, and a like grace to all the benefactors of the church and all that visited the altars, as was set forth clearly in the Bishop's letter concerning the consecration of the church.

In this same church there still stand the two altars that were consecrated in Westerhof at the first foundation of the House in that place; for these, by consent of the Bishop of Utrecht, were transferred to this church after the return of the Brothers from Westerhof.

One of these was consecrated in honour of St.John the Baptist and the Blessed Apostles St.Peter and St.Paul; this doth stand on the south side of the church.