29 September may be observed as the Festival of Michael and All Angels, or as Trinity 15.

If 29 September is observed as the Festival of Michael and All Angels:

Michael and All Angels

http://almanac.oremus.org/2019-09-29

White

Principal Service
Genesis 28.10-17
Psalm 103.19-22
Revelation 12.7-12
John 1.47-51

(or)
Revelation 12.7-12
Psalm 103.19-22
Hebrews 1.5-14
John 1.47-51

Third Service
Tobit 12.6-22 or
Daniel 12.1-4
Acts 12.1-11
Morning Psalms
Psalms 34, 150

Second Service
Daniel 10.4-21
Revelation 5
Evening Psalms
Psalms 138, 148

Collect

Everlasting God,
you have ordained and constituted
the ministries of angels and mortals in a wonderful order:
grant that as your holy angels always serve you in heaven,
so, at your command,
they may help and defend us on earth;
through Jesus Christ your Son our Lord,
who is alive and reigns with you,
in the unity of the Holy Spirit,
one God, now and for ever.

Post Communion

Lord of heaven,
in this eucharist you have brought us near
to an innumerable company of angels
and to the spirits of the saints made perfect:
as in this food of our earthly pilgrimage
we have shared their fellowship,
so may we come to share their joy in heaven;
through Jesus Christ our Lord.

BCP: In the BCP Calendar, the Festival of Michael and All Angels may be observed on Sunday 29 September, or it may be transferred to Tuesday 1 October.

BCP: Saint Michael and All Angels

BCP: BCP Holy Communion

Daniel 10.10-19a
Psalm 103.17-22
Revelation 12.7-12
Matthew 18.1-10

BCP Collect

O everlasting God, who hast ordained and constituted the services of Angels and men in a wonderful order; Mercifully grant that, as thy holy Angels alway do thee service in heaven, so by thy appointment they may succour and defend us on earth; through Jesus Christ our Lord.