The Festival of Matthew may be observed on Sunday 21 September or Monday 22 September.
If it is observed on Monday 22 September:

Matthew, Apostle and Evangelist

https://almanac.oremus.org/2025-09-22

Red

Principal Service
Proverbs 3.13-18
Psalm 119.65-72
2 Corinthians 4.1-6
Matthew 9.9-13

Third Service
1 Kings 19.15-end
2 Timothy 3.14-end
Morning Psalms
Psalms 49, 117

Second Service
Ecclesiastes 5.4-12
Matthew 19.16-end
Evening Psalm
Psalm 119.33-40, 89-96

Collect

O Almighty God,
whose blessed Son called Matthew the tax collector
to be an apostle and evangelist:
give us grace to forsake the selfish pursuit of gain
and the possessive love of riches
that we may follow in the way of your Son Jesus Christ,
who is alive and reigns with you,
in the unity of the Holy Spirit,
one God, now and for ever.

Post Communion

Almighty God,
who on the day of Pentecost
sent your Holy Spirit to the apostles
with the wind from heaven and in tongues of flame,
filling them with joy and boldness to preach the gospel:
by the power of the same Spirit
strengthen us to witness to your truth
and to draw everyone to the fire of your love;
through Jesus Christ our Lord.

(or)

Lord God, the source of truth and love,
keep us faithful to the apostles’ teaching and fellowship,
united in prayer and the breaking of bread,
and one in joy and simplicity of heart,
in Jesus Christ our Lord.