Altar exchanges are a traditional part of wedding ceremonies. They involve the exchange of RINGS, VOWS, and other symbolic items. RINGS are exchanged as a symbol of commitment and love, while VOWS are spoken to express the couple's commitment to each other. IDOS is an acronym for 'I do solemnly swear, ' which is a phrase commonly used in marriage VOWS. Marriage VOWS are promises made by the couple to one another, often including promises of fidelity, love, and support. Altar exchanges are a meaningful way for couples to express their commitment to one another on their wedding day.