The Terra Sancta Guild is a group of major donors who provide philanthropic support for special projects of the Diocese of Rapid City. Donors who initially pledge a total of $5,000 or more to the We Walk by Faith Special Appeal will be considered charter members. After their five-year pledge period, donors will be invited to retain membership in the guild through an annual gift. Donors will receive further information when their pledge is completed. Charter members will be recognized at five levels, as follows:

All Terra Sancta Guild members will receive a commemorative lapel pin and will be recognized annually in diocesan publications. Each year, Terra Sancta Guild members will be invited to a reception and dinner with the bishop on or around the week of September 14, the Feast of the True Cross.