The answer
You can find many lectures on various topics on our Diocese website under Resources/Literature:http://www.suscopts.org/resources/literature/
There are several sections with numerous lectures on the Orthodox Faith:
http://www.suscopts.org/resources/literature/orthodox-faith/
This section has lectures on Soteriology:
http://www.suscopts.org/resources/literature/orthodox-faith/soteriology/
This lecture is on Original Sin and Atonement:
http://www.suscopts.org/messages/lectures/soterlecture1.pdf
Answered by His Eminence Metropolitan Youssef (opens in a new tab)