The festival of Thomas, Apostle, may be observed on Sunday 3 July or Monday 4 July.
If it is observed on Sunday 3 July:

Thomas the Apostle

https://almanac.oremus.org/2022-07-03

Red

Principal Service
Habakkuk 2.1-4
Psalm 31.1-6
Ephesians 2.19-end
John 20.24-29

Third Service
2 Samuel 15.17-21 or
Ecclesiasticus 2
John 11.1-16
Morning Psalms
Psalms 92, 146

Second Service
Job 42.1-6
1 Peter 1.3-12
Evening Psalm
Psalm 139

Collect

Almighty and eternal God,
who, for the firmer foundation of our faith,
allowed your holy apostle Thomas
to doubt the resurrection of your Son
till word and sight convinced him:
grant to us, who have not seen, that we also may believe
and so confess Christ as our Lord and our God;
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.