What place do ritual and ceremony have in the church today? (Non-Liturgical POV)

Scripture, especially in the Old Testament, goes into great detail about the specific ways of doing certain worship-related things. For example, The ordination of Aaron is a highly ritualized procedure. The sacrifices are each a little different and are laid out as detailed rituals performed by priest and worshiper. Even the camp around the tabernacle was highly organized and only set out when the trumpets were blown a certain way. Given the ceremonial aspect of all the rituals laid out in the Sinaitic law, the specific guidelines for priests and sacrifices, and the ceremonial and symbolic nature of communion and baptism, is there any biblical basis for rejecting ceremony and ritual? In the worship service, this would be a question for non-liturgical churches. For things like weddings and the like, please give biblical support for why the ceremony or ritual of the wedding service itself would be considered unnecessary.