Foot washing "mandatum" (maundy), therefore, was applied to the rite of foot-washing on this day of the Christian Holy Week called Maundy Thursday. John 13:1–17 recounts Jesus' performance of this act. In verses 13:14–17, He instructs His disciples: Many denominations (including Anglicans, Lutherans, Methodists, Presbyterians, Mennonites, and Catholics) therefore observe the liturgical washing of the feet on Maundy Thursday of Holy Week. Moreover, for some denominations, foot-washing was an example, a pattern. Many groups throughout Church history and many modern denominations have practiced foot washing as a church ordinance including Adventists, Anabaptists, Baptists, and Pentecostals. The origin of the word "Maundy" has
Determination of the day of the week possible to do all the calculations in one's head with a little practice). None of the methods given here perform range checks, so unreasonable dates will produce erroneous results. Every seventh day in a month has the same name as the previous: "Corresponding months" are those months within the calendar year that start on the same day of the week. For example, September and December correspond, because September 1 falls on the same day as December 1. Months can only correspond if the number of days between their first days is divisible by 7, or in other words, if their