suitable text to support preaching

Discuss how you choose the appropriate text for different preaching situations. Ensure the following points are addressed.
Familiar text
Length of the text.
Preaching a series

Watch the homiletics video provided in the link below.https://www.youtube.com/watch?v=M6NHVeKytFo&index=3&list=PLu1ip4zAa0_NuJIuUIke5QGREcYMYShjm
Text:
Hamilton, Donald L. Homiletical Handbook. Nashville: Broadman, 1992.