Commentaries:
Robertson's Word Pictures (NT)
Not to meditate beforehand (mh promeletain). The classical word for conning a speech beforehand. Mark 13:11 has promerimnaw, a later word which shows previous anxiety rather than previous preparation.
How to answer (apologhqhnai). First aorist passive infinitive. It is the preparation for the speech of defence (apology) that Jesus here forbids, not the preparation of a sermon.
Other Robertson's Word Pictures (NT) entries containing Luke 21:14:
Luke 12:11
Acts 24:10
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.