The offertory (from Medieval Latin offertorium and Late Latin offerre) is the part of a Eucharistic service when the bread and wine for use in the service are ceremonially placed on the altar.
A collection of alms from the congregation, such as may take place also at non-Eucharistic services, often coincides with this ceremony.
The Eucharistic theology of Christian denominations that have a liturgical offertory may vary.
In the Roman Rite, the term "preparation of the gifts" is used in addition to the term "offertory".
Liturgical action 
In the Roman Rite, the offertory is the first part of the Liturgy of the Eucharist. The altar is first prepared by placing on it the corporal, purificator, missal and chalice. It is considered praiseworthy for the bread and wine and perhaps other offerings or gifts for the poor or for the Church to be presented by the faithful in a procession to the accompaniment of an offertory chant. The priest then places first the bread and then the wine on the altar while saying the prescribed prayers, after which he may incense them together with the cross and the altar. The priest himself and the people may also be incensed. Then, after washing his hands at the side of the altar, the priest says the Prayer over the Offerings. This was originally the only prayer said at the offertory of the Roman Rite.
There are variations in other rites. For instance, in the Dominican Rite a single prayer is said at the offertory over the bread and wine that have already been prepared on the altar at an earlier part of the Mass.
In the Byzantine Rite, there is a short offertory at the same point as in the Roman Rite, but a more elaborate ceremonial, the Liturgy of Preparation, takes place before the public part of the celebration of the Divine Liturgy.
In the Roman Rite, the procession bringing the gifts is accompanied by the Offertory Chant, and singing may accompany the offertory even if there is no procession. Before 1970, the priest said the Prayer over the Offerings silently because during the offertory the people, at an earlier time, sang a psalm or, in responsorial fashion, repeated a refrain while a soloist sang the verses of the psalm. In the Tridentine Mass, only the choir sang the refrain alone to an elaborate setting, and the priest read the refrain at the beginning of the offertory not only at a Low Mass, which was without singing, but even at a Solemn Mass.
The 1662 Book of Common Prayer of the Church of England includes "offertory sentences" that are to be read at this point. Current practice in Anglican churches favours the singing of a congregational hymn (the "offertory hymn") or an anthem sung by the choir. In some churches music at the offertory is provided by an organist.
Collection of alms 
Collection bag used in church in southern Sweden
During the offertory or immediately before it, a collection of money or other gifts for the poor or for the Church is taken up. While these may be brought forward together with the bread and wine, they are not to be placed on the altar.
A collection plate is often used near the end of some Protestant worship services, rather than at the offertory, to gather the gifts of the faithful for the support of the church and for charity.
Offertory - John Ness Beck Matthews Presbyterian Church Adult Choir, Matthews, NC Director: David Brinson Pianist: ML Marley.
Offertory - Requiem - Faure
From the requiem by Gabriel Fauré, The Offertory. Other sections of this setting here: Introit & Kyrie - http://www.youtube.com/watch?v=HAQ58qeFhxQ Offertory...
Offertory - Faure Requiem
The second movement of the Faure Requiem - the Offertory. Performed by the Mansfield University Festival Chorus, accompanied by an orchestra composed of MU s...
John Ness Beck: Offertory
The Strathroy United Church Senior Choir under the direction of organist and music director Edith Hanselman featuring soloist Ryan Vamos performs John Ness B...
Offertory Song (Take My Hands).wmv
Sung by the CHL Group in collaboration with the "Love of God" group, Holy Family Parish, Choi Hung,HKSAR on 6 March 2011.
11. Teilhard's Offertory: The Preparation of the Gifts
Analysis of the Preparation of the Gifts in the Missal of Paul VI. Buy book:http://www.SGGResources.org Overview of Chapter 11 of Fr. Anthony Cekada's Work o...
Gabriel Fauré - "Requiem" Offertory II
Gabriel Fauré - Requiem II. Offertory NATIONAL CHAMBER CHOIR OF ARMENIA Art director R. Mlkeyan YOUTH STATE ORCHESTRA OF ARMENIA Art director S. Smbatyan Con...
Offertory by John Ness Beck
Offertory by John Ness Beck was sung by soprano Lynne Spotts at the First Presbyterian Church in Tequesta, FL. and was accompanied by Marklin Green on organ ...
catholic latin tridentine mass 4 offertory
sunday after christmas 2007. sung latin tridentine mass 11.30am at st andrews catholic church belford rd edinburgh eh4.daily mass at house chapel 6 belford p...
03 [Faure Requiem] 2. Offertory
[Faure Requiem] 2. Offertory - Gabriel Faure * Hanwoori Choir 8th Annual Concert (amateur) - 2011. 7. 9 - National Theatre 'Yong' (Seoul, Korea) - Cond. : Ha...
Sat, 18 May 2013 18:42:47 -0700
During the offertory, Martha (James) Givhan, church organist, and her grown daughter, Endsley Givhan Bolen, flautist, played a piano-flute duet, “Amazing Grace.” It was close to perfection. Dr. Fred Karthaus, pastor, preached about mothers. During ...
The Daily Advertiser
Sun, 19 May 2013 00:58:30 -0700
Scriptures were read by Rachael Hymel and Meghan Broussard. Offertory Gifts were by Zach and Annie Budnik. Following the ceremony, a reception was held at Café Vermilionville where Nik-L-Beer entertained guests. The couple will reside in Lafayette.
Sun, 19 May 2013 09:40:43 -0700
The job responsibilities would include processing of payables, payroll, and data entry of offertory. Additional responsibilities include purchasing of building supplies, management of maintenance staff, and oversight of building contracts. (1 ...
Kingston Daily Freeman
Fri, 17 May 2013 19:43:21 -0700
On Wednesday, baritone Faraz Ardalan sang the “Offertory”; soprano Rachael Wenzel sang “Pie Jesu”; and Henry Donner sang “Libera Me.” Lohman said the KHS music department has all the components for the “Requiem,” except the organ, so guest ...
Wilkes Barre Times-Leader
Fri, 17 May 2013 14:13:15 -0700
Scriptural readings were given by Maura McCormick, cousin of the bride, and Erin Monaghan, cousin of the groom. Offertory gifts were presented by James and Mary O'Connor, godparents of the bride. Amelia Ardito, cousin of the groom, served as cantor.
Wed, 15 May 2013 06:07:24 -0700
Munster's second row Paul O'Connell, who has spoken movingly of his friendship with Donal, was unable to attend due to his involvement with the British and Irish lions but Irish and Leinster flanker Shane Jennings took his place in the offertory ...
Thu, 16 May 2013 11:30:09 -0700
There was an Indian flair, specially at the Offertory Procession.The German people showed a warm welcome and a generous hospitality after the Mass, especially serving tasty Moselle wine, and a sumptuous luncheon was followed. Trier is the oldest German ...
Thu, 16 May 2013 00:10:25 -0700
Karen and Becky led the song service and Mitchell Lett gave the offertory prayer and then he and Tyrel Lett served as ushers. Brother Mark Hall began God's message for us by stating that a mother's love is the closest love on earth to God's love. “When ...
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