The Trinity, of the Father, Son and Holy Spirit, is seen all over scripture.
For most followers of Jesus as they obey God, the understanding of the
Trinity is no big stumbling block, we believe it by faith. Tunisians like
most Muslims are taught to deny the concept of the Trinity.

Pray for Tunisian Muslims to obey the commands of
Jesus as they learn those commands.
Pray that as they start to obey, the seemingly harder
teachings of Jesus would fall away and the truth of
God would become real to them.
Pray that the fight in their lives against the Trinity;
Father, Son and Holy Spirit, would turn into a greater
love for God and desire to obey His commands.