St. Luke compiled his Gospel and the Acts of the Apostles not to describe how good things were in the early Church but to address how bad things were becoming after the first generation of Christianity. The Christian community got bogged down with internal problems and was no longer motivated to evangelize. The Church was lukewarm (Rv 3:16). Luke composed his Gospel and Acts of the Apostles to change this.
“Lord, make me an instrument of thy peace.
Where there is hatred, let me sow love;
Where there is injury, pardon;
Where there is doubt, faith;
Where there is despair, hope;
Where there is darkness, light;
Where there is sadness, joy.
O divine Master, grant that I may not so much seek
To be consoled as to console,
To be understood as to understand,
To be loved as to love;
For it is in giving that we receive;
It is in pardoning that we are pardoned;
It is in dying to self that we are born to eternal life